Hello all. Thank you DrDalyO for this and more great tutorials! I also had the same error as many have mentioned here. The error goes like, "Switching to a different shape is not allowed while elements of ... Element type 1 is not the same shape as SOLID65." The solution is to select your concrete part and modify the mesh by doing the following: (1) right click on mesh, (2) select "method", and change the method to "multizone". Apparently SOLID65 elements should have such shape.
That's a very nice video. There are not many RC examples done in Workbench. After some time, I was able to come up with a similar model (including command blocks), but it's really good to see we are on the same track! Keep up the good work and thank you! Igor
Actually, I am analysing RC structures subjected to fire, which is basically this, but extended for higher temperatures (material data, linked thermal and structural analysis, etc). We shall definitely stay in touch :)
Hi, and thanks for putting up your concrete modeling videos. One comment on the static structural model that you have developed: Viewers should note that the coupling connection between nodes reinforcing rods and concrete by node coupling works only because of the element sizes and placement of the rods in the concrete block. You have done it so that you have coincident nodes in the elements of the concrete block and of the rods. Users will need to ensure that they use low-order bricks so that the SOLID65 bricks can be substituted. It will take more work for the "general case" in which the concrete is carved up into a multibody part so that reinforcing bars can be placed along edges of the bodies that are the concrete. With mesh density controls along the edges that are shared between the line bodies of the reinforcing bars and the concrete blocks, it should be possible to have coincident nodes that can be coupled with reinforcing bar locations that are not quite as restrictive. I am impressed with how smoothly and quickly you are able to present. Nice piece of work!
thank you for very interesting. Vedio ,,I hope is these are. available. ,, one Vedio. for. doubly reinforced. beam. also. thank you. for a nice last Vedio. about. all the ,topic of static sturcture ,,,continuo dr don't stop ,,many people are watting for you.
These commands are not working can you explain it to me bit clear this is the error which occur after solve An unknown error occurred during solution. Check the Solver Output on the Solution Information object for possible causes.
Hello, I followed your guide step by step. I have tried for 2 days straight to solve this but the following warnings occur when trying to solve: Poisson's ratio NU set for material 1 deleted. Material property table exceeds the number of defined temperatures. Number of temperatures is 1. The number of data values is 2. Poisson's ratio NU set for material 3 deleted. Material property table exceeds the number of defined temperatures. Number of temperatures is 1. The number of data values is 2. Poisson's ratio NU set for material 4 deleted. Material property table exceeds the number of defined temperatures. Number of temperatures is 1. The number of data values is 2. Poisson's ratio NU set for material 5 deleted. Material property table exceeds the number of defined temperatures. Number of temperatures is 1. The number of data values is 2. Poisson's ratio NU set for material 6 deleted. And then a warning that: 'One or more bodies may be underconstrained and experiencing rigid body motion. Weak springs have been added to attain a solution. Refer to Troubleshooting in the Help System for more details.' Can you please help me? I suspect either the command files are incorrect or something else. I have redone your exact steps multiple times and still get errors. Thanks Dr.
DrDalyO, I had previously tried out this tutorial during my PhD, but I was using APDL. I can provide some comments here, but I also have questions. 1) Your concrete stress-strain graph for concrete plateaus at peak strength but the real graph for concrete shows strain softening. As I know, v12 - v14 cannot model strain softening and I think that's why you had used the plateau here. Is the only workaround for this is to use Explicit Analysis? 2) Why was strain softening able to be modelled in v10 and earlier? Were v10 and earlier using a different solver or was that an ANSYS coding error? 3) What are the limitations in Workbench (WB) that requires one to revert back to using (parts of) APDL on certain situations? 4) Wasn't WB supposed to replaced APDL, so why do those limitations still exist in v18? Thanks.
Thank you DrDalyO for the video! Sir, Are the commands used in this video applicable for lateral reinforcement as well? If not, what commands are to be changed ?
One correction in the video the Solid65 and Link180 do not define the material, These are the element type that ANSYS will consider while solving the equations.
Hello Dr Dalyo... Thanks for the video, it's been helpful. Can you please advise me on how to model prestressing in workbench assuming the same model was prestressed concrete beam. how would I add a prestressing force to the rebar.
Hello Dr Daylo,thank you for uploading the tutorial! I want to know if I can still work on the Ansys workbench if I don't have the command inputs from solid work that you've mentioned then please let me know
Hello, very nice demonstration. have you tried modeling a beam with cold joint? if the cold joint of the beam is inclined, how do you model an inclined surface how do you bond the two concrete surfaces? thank you very much
Thank you DrDaylO for the video . I'm new to Ansys and Is it possible to model and analyze the above without the command blocks? Also, Is it possible to include bond strength between rebar and concrete in the analysis ?? Thanks.
I have a problem An unknown error occurred during solution. Check the Solver Output on the Solution Information object for possible causes. One or more bodies may be under constrained and experiencing rigid body motion. Weak springs have been added to attain a solution. Refer to Troubleshooting in the Help System for more details. Can you help sir..
Also DR. when adding the commands: /PREP7 ESEL,S,ENAME,,65 ESEL,A,ENAME,,180 ALLSEL,BELOW,ELEM CEINTF,0.001, ALLSEL,ALL /SOLU OUTRES,ALL,ALL Do you not have to change the 'ENAME' to something else? Such as the Support so the errors do not show up?
Can you create a new reinforced concrete tutorial using Ansys R19 please? R19 has a weird interface and tools are different. I went through this example with R14 version (that's the only old version I could find). And I got these two errors: - "An unknown error occurred during solution. Check the Solver Output on the solution information object for possible causes." - One or more bodies may be underconstrained and experiencing rigid body motion. Weak springs have been added to attain a solution...." I did exactly what you have shown in this video, but it is giving some warnings about poissons ratio in the Solver Output. Thanks, Baha
Dear DrDalyo, Thank you for this video. Can we use SOLID65 or other elements without using commands? It will be great if you or someone else answers that.
When i made this video, there was no other way to use SOLID65 in workbench. If you use APDL its available but the interface and post graphics processing is dated. Thank you for watching!
when i changed the stress strain table with high strength concrete the ansys did not solve sir thank you very mush for the video you have no idea how i appreciate it
+Mazin Omer I am not sure whats the problem, but this model is not very stable as it is.. start by making small changes to my code to figure it out more easily.
I begin to use a uhpc. mm/mm N/mm² 0,00000 0,00000 0,00173 75,00000 0,00184 79,29002 0,00196 83,98509 0,00208 88,27732 0,00220 93,04424 0,00232 97,32686 0,00242 101,32217 0,00255 105,37563 0,00266 109,08479 0,00275 112,06690 0,00285 115,02874 This TBDATA is based on real pressure tests (uhpc cylinder). If i exclude this !TB,CONCR,MATID,1,9 !TBTEMP,22 !TBDATA,1,0.3,0.8,1.5,25 it works well. Now I am working on that coefficients to reach the crack/crush plots.
Dear Dr. DalyO , we are working on diffirent project ( dam design). Our problem is about solution because we have error message all the time (ERROR MESSAGE: the solver engine was unable to converge on a solution for the nonlinear problem as constrained ) . Thanks for your interest.
Dr DalyO, thank you for this very helpful video. You have mentioned that there are other tutorials that do similar static modelling for concrete/rebar from within Ansys APDL - could you point me to these tutorials please that you refer to when you get an opportunity. From APDL, I am presently endeavouring to model concrete/rebar with stirrups (eventually studying the effect of openings within the concrete beam); I have come across a few relevant tutorials using APDL but would appreciate if you or any of the community could point me to other relevant tutorials (using the APDL development environment please). Many thanks
Hello Dear DrDalyo! Thank you for this useful video. Could u make a video for (shear Wall or RCC wall ) with biaxial loading, how would be deformation and cracks. Thank u very much, waiting for the video.
Thank you sir for uploading this video, I am trying same analysis for another geometry but it shows an error : *** ERROR *** CP = 1.186 TIME= 11:47:34 Duplicate temperature values were found. The MPTEMP command is ignored. please help me to get rid of these errors in this project.
because , I Need to know Carefully How to Make a good Contacts definition between main bars (top & bottom ) and links also contacts with concrete areas ,, in addition to make a good quality of mesh of Doubly Reinforced Concrete Beam ,,,Thanks Dr.
Thank you for this video. I tried the example out but got 40 of errors stating "Constraint equation xx has unused node 3581" where xx is a number in the range 1-40. Any assistance to solve this will be appreciated
please how can i define bond between concrete and rebar in ansys workbench such as (combin39 ) or spring 14? if you can send me code for this definition
Dear DrDalyO, Thank you for uploading this useful video. Expecting more informative tutorials like this. Can you please send me the link to the entire report of NGUYEN ? Thank you, Regards.
This tutorial is awesome. Thank you so much. I have 1 question, did you ever calculate rc beam strenght by FRP sheet? I want to solve this problem using ANSYS, using analytical method and in natural experiment. So Im open for all advices))
''Node 4 does not lie on or near the selected elements. The CEINTF operation produced no results for this node." I have this warning... do you have any idea what is happening?
Thankyou Dr Dalyo for the well explained tutorial, although when I tried to replicate the things some errors are appearing like- "one or more bodies may be underconstrained and experiencing rigid body motion. Weak springs have been added to attain a solution." Please tell me if you have any idea about how to overcome such error. Thanks
+rishabh shotri im not sure if this resolves that error, but i remember that i did forget to drop element midside nodes i believe when recording. Check the comments, someone else posted about it. If doesnt help, post another comment here
I am sorry, I didn't understand, I mean what exactly "drop element midside nodes" means. I do have checked for other comments, but unable to find the solution to the error. Thanks
it is excellent video. sir i want to make tapered rcc beam or haunched beam so how to give non linear section to the beam and how to make model and how to give material like concrete and rebar
sir , Can you make video on drop weight impact analysis on reinforced concrete slab/ beam and also crack pattern analysis. Really appreciate it. Thank you.
Hi sir, thank you for your demonstration. i tried to model a slab with rebar using this method for my research but an unknown error is showing. it would be helpful for me if you could upload a video about modeling a simply supported slab in ANSYS 17.2 Thank you
Thanks, DrDalyo. I met this problem 'Element type 1 is not the same shape as SOLID65. Switching to a different shape is not allowed while elements of type 1 exist.' It seems when solid65 tries to override Structural Steel, it fails. Do you have any idea about how to fix it?
Thank you for the grat example, sir. I repeated it step by step and received the same results, which is good. But i couldn't receive the stress in the rebar. Is it possible in this way?
+Techcrafter You would need to use more command objects do get these results. I probably should have included this in the tutorial. In the Solution(A6), right click and add command object, insert the following code to see axial force and stress results for the beams: /SHOW,PNG /VIEW,1,1,1,1 allsel ESEL,S,ENAME,,180 ETABLE,Force,SMISC, 1 ETABLE,Sxx-i,LS,1 ETABLE,Sxx-j,LS,2 PLETAB,Force PLLS,Sxx-i,Sxx-j allsel
Hi..... I got the force and stress results but cannot interpret its meaning. Are these von-mises stresses or axial stresses? Also what are the units of these forces and stresses?
Hello sir, I've recently started working in ANSYS Workbench 19.0. I used the APDL commands you have specified with minor changes in the stress and strain, but the deformation is very low when compared to the experimental data. The rebar commands are not influencing the model. It doesn't show any error when I comment Young's modulus or I increase the value exponentially. Could you please help me in this?
I tried to reproduce your model sir. I changed the rebar young's modulus to 2e10. I can find no changes in the result, Sir. Kindly help me in this. This would greatly help me in my model progress.
Please tell me how to fix this error.."AN unknown error occurred during solution. Check the Solver Output on the Solution Information object for possible causes".???
Thank you for this tutorial, it's help me a lot to use ANSYS Workbench. But i don't understand one thing, why you use the commend APDL for stress-strain relationship, and didn't put them in engineering data? Can i put the stress-strain relationship in engineering data? because i have to model a frame under lateral loads
Thank you Dr.Dalyo very much for the video. I used the geometry file from your last video since it includes shear reinforcement in it. I changed the APDL code for rebar by changing the radius of the rebar appropriately. But I get an error,"Node 1578 belongs to element 124. The CEINTF operation will not consider this node/element combination" and this error continues to the rest of the nodes. Can you please help me ? Should I change the APDL code elsewhere or if else where should I ? Would be much appreciated if you could help me ?
+Sivaraman Kiran It might be because the mesh nodes do not line up nicely with the rebar. try to space the rebar evenly, so when you go to create a mesh, the element size will be a multiple of the rebar spacing so the nodes will line up. if the rebar nodes and the concrete mesh nodes are not close, you might get errors.
Hello Sir, I am new to ansys and i am trying to model circular concrete column with biaxial bending. While defining the concrete material as per the apdl commands I am getting an error as, "Element type 1 is not the same shape as SOLID65. Switching to a different shape is not allowed while elements of type 1 exist". Also, if I am to model 3D reinforcement, please can you guide me with the commands for rebar as solid65. Please guide me asap
thank u Dr for ur interesting kindly I want to ask what about pretension prestressed concrete or posttension concrete its possible to modeling it by ansys ? and if we did hole through the concrete and but in these hole beam element as tendon and bonded between them it will work ?
+Ahmed Al-dean i am not familiar with pretension or prestressed elements for this example sorry. It should be possible, please see the ansys help online.
Hi, for link180 element the radius assigment via a real constant is not supported from 14 and later. Instead of you should use SECTYPE and SECDATA commands
Thank you sir for uploading this video. I have doubt in concrete slab testing i analyse a slab with reinforcement and without reinforcement but the result for the both model is same. Sir pls help me in that problem
Thank you for the tutorial. I have a question. How to match the nodes of concrete and the ones of rebars, if the rebars are positioned random in the section? Thanks!
How can we find out shear force and bending moment diagram for a simply supported beam with some load? Hoping for a suggestion from you sir. Thanks in advance.
Hi, want to ask. If i click the solution for maximum principle stress, the impactor is moving out from the body (concrete). why? can we lock it so that it cannot move?
Dear Dr, for Ansys 2021 R2, can we use the same method to assign the element type and material model as shown in this video? I mean you assign command for each of the geometry element. Thank you
Where can i get these infos which are included in Command file ? Must commands be added for like these analysis? Why did we enter that? I'm looking forward for the answers. Very educating video. Thanks sir !
Dear Dr. DalyO, good day, as per your above tutorial, I inserted a command for selection of element type (SOLID185)as follow:ET,MATID,SOLID185 R,MATID,0,0,0,0,0,0 RMORE,0,0,0,0,0 MP,EX,MATID,28000 MP,PRXY,MATID,0.2, but I got the following error message:Element type 1 is not the same shape as SOLID185. Switching to a different shape is not allowed while elements of type 1 exist.What is the problem here?
I have a problem my geometry is complex so it's a tetra mesh is there any way to use the same command the solve is give me error because of concrete elements
Sir,I have a doubt.solid65 element is used for concrete . It is used for all grades like m25, m30 and so on....so how could I particularly use it for a specific grade?should I have to alter it's command
Hello all. Thank you DrDalyO for this and more great tutorials! I also had the same error as many have mentioned here. The error goes like, "Switching to a different shape is not allowed while elements of ... Element type 1 is not the same shape as SOLID65." The solution is to select your concrete part and modify the mesh by doing the following: (1) right click on mesh, (2) select "method", and change the method to "multizone". Apparently SOLID65 elements should have such shape.
That's a very nice video. There are not many RC examples done in Workbench. After some time, I was able to come up with a similar model (including command blocks), but it's really good to see we are on the same track!
Keep up the good work and thank you!
Igor
Thanks! If you improve the model and/or verify it with data please keep me posted!
Actually, I am analysing RC structures subjected to fire, which is basically this, but extended for higher temperatures (material data, linked thermal and structural analysis, etc).
We shall definitely stay in touch :)
Hi, and thanks for putting up your concrete modeling videos. One comment on the static structural model that you have developed: Viewers should note that the coupling connection between nodes reinforcing rods and concrete by node coupling works only because of the element sizes and placement of the rods in the concrete block. You have done it so that you have coincident nodes in the elements of the concrete block and of the rods. Users will need to ensure that they use low-order bricks so that the SOLID65 bricks can be substituted. It will take more work for the "general case" in which the concrete is carved up into a multibody part so that reinforcing bars can be placed along edges of the bodies that are the concrete. With mesh density controls along the edges that are shared between the line bodies of the reinforcing bars and the concrete blocks, it should be possible to have coincident nodes that can be coupled with reinforcing bar locations that are not quite as restrictive. I am impressed with how smoothly and quickly you are able to present. Nice piece of work!
Thanks you so much for being more than helpful. God bless you!
thank you for very interesting. Vedio ,,I hope is these are. available. ,, one Vedio. for. doubly reinforced. beam. also. thank you. for a nice last Vedio. about. all the ,topic of static sturcture ,,,continuo dr don't stop ,,many people are watting for you.
Thank you DrDaylO for the video .
You have great tutorials! Can you continue making them please
Extremely helpful, I'm appreciating so much. Good luck for you!
Hi,
Can you make a tutorial of RC Beam/column with FRP? Really appreciate it.
Thank you>
i was about to ask this too. i think i can do that using staad but in ansys i dont know. 😅😅
Dear Dr, I ask you in recent version of Ansys workbench static , the bond slippage between bars and concrete can defined as built-in without command ?
So good Dr.Dalyo
These commands are not working can you explain it to me bit clear
this is the error which occur after solve
An unknown error occurred during solution. Check the Solver Output on the Solution Information object for possible causes.
I am having the same issue as well on the 2020 AnSys academic version.. I don't know the exact reason. Did you figure it out??
@@tekdhant3731 not yet but my guess it connection command which creating the problems
could you please do a detailed video on soil-structure interaction analysis and design of a building? that'd be very helpful
thank u very much .. I'm learning so much things from your videos .. please keep going :)
Thank you for the understandable tutorial.
Hello, I followed your guide step by step. I have tried for 2 days straight to solve this but the following warnings occur when trying to solve:
Poisson's ratio NU set for material 1 deleted.
Material property table exceeds the number of defined temperatures.
Number of temperatures is 1. The number of data values is 2.
Poisson's ratio NU set for material 3 deleted.
Material property table exceeds the number of defined temperatures.
Number of temperatures is 1. The number of data values is 2.
Poisson's ratio NU set for material 4 deleted.
Material property table exceeds the number of defined temperatures.
Number of temperatures is 1. The number of data values is 2.
Poisson's ratio NU set for material 5 deleted.
Material property table exceeds the number of defined temperatures.
Number of temperatures is 1. The number of data values is 2.
Poisson's ratio NU set for material 6 deleted.
And then a warning that: 'One or more bodies may be underconstrained and experiencing rigid body motion. Weak springs have been added to attain a solution. Refer to Troubleshooting in the Help System for more details.'
Can you please help me? I suspect either the command files are incorrect or something else. I have redone your exact steps multiple times and still get errors.
Thanks Dr.
i also having the same issue brother regarding to the warning. did you done it correctly? if so then please tell me how you did it?
Kindly regards
@@moeedshahid6193 me to. I used 2020 R1 and I cannot show the cracks
Thanks you for your nice presentation.
Thank you!
DrDalyO, I had previously tried out this tutorial during my PhD, but I was using APDL. I can provide some comments here, but I also have questions. 1) Your concrete stress-strain graph for concrete plateaus at peak strength but the real graph for concrete shows strain softening. As I know, v12 - v14 cannot model strain softening and I think that's why you had used the plateau here. Is the only workaround for this is to use Explicit Analysis? 2) Why was strain softening able to be modelled in v10 and earlier? Were v10 and earlier using a different solver or was that an ANSYS coding error? 3) What are the limitations in Workbench (WB) that requires one to revert back to using (parts of) APDL on certain situations? 4) Wasn't WB supposed to replaced APDL, so why do those limitations still exist in v18? Thanks.
May you arrange stirrup rebar in order to learn how you provide bond between longitudinal rebar and shear rebar ?
Thank you DrDalyO for the video! Sir, Are the commands used in this video applicable for lateral reinforcement as well? If not, what commands are to be changed ?
One correction in the video
the Solid65 and Link180 do not define the material, These are the element type that ANSYS will consider while solving the equations.
you are right they are element types than can then later carry material definitions
Hello Dr Dalyo... Thanks for the video, it's been helpful. Can you please advise me on how to model prestressing in workbench assuming the same model was prestressed concrete beam. how would I add a prestressing force to the rebar.
Hello Dr Daylo,thank you for uploading the tutorial!
I want to know if I can still work on the Ansys workbench if I don't have the command inputs from solid work that you've mentioned then please let me know
Thank you Dr Its perfect
Hello DrDayl0, could you remake this video using Ansys 19?
PLEASE DO SO
Great video! Thanks!
Thank you!
funny thing happening to my model when i add APDL. the force i apply is in Possitive Y while the deformation i get is in the opposite direction.
Hello, very nice demonstration. have you tried modeling a beam with cold joint? if the cold joint of the beam is inclined, how do you model an inclined surface how do you bond the two concrete surfaces? thank you very much
I have not actually..
How about modelling stirrup reinforcement to hold back shear effect? please help
I have the same question
Really helpful video..
I want to check a sandstone behaviour can I approach in the same way ?
Thank you DrDaylO for the video .
I'm new to Ansys and Is it possible to model and analyze the above without the command blocks?
Also, Is it possible to include bond strength between rebar and concrete in the analysis ??
Thanks.
I have a problem
An unknown error occurred during solution. Check the Solver Output on the Solution Information object for possible causes.
One or more bodies may be under constrained and experiencing rigid body motion. Weak springs have been added to attain a solution. Refer to Troubleshooting in the Help System for more details.
Can you help sir..
i am also having the same issue . did you solve this ? if so then please tell me
Also DR. when adding the commands: /PREP7
ESEL,S,ENAME,,65
ESEL,A,ENAME,,180
ALLSEL,BELOW,ELEM
CEINTF,0.001,
ALLSEL,ALL
/SOLU
OUTRES,ALL,ALL
Do you not have to change the 'ENAME' to something else? Such as the Support so the errors do not show up?
Ok sir thanx for your good work.I will try it.
Can you create a new reinforced concrete tutorial using Ansys R19 please? R19 has a weird interface and tools are different.
I went through this example with R14 version (that's the only old version I could find). And I got these two errors:
- "An unknown error occurred during solution. Check the Solver Output on the solution information object for possible causes."
- One or more bodies may be underconstrained and experiencing rigid body motion. Weak springs have been added to attain a solution...."
I did exactly what you have shown in this video, but it is giving some warnings about poissons ratio in the Solver Output.
Thanks,
Baha
I got the R19 as well, I'm interested in compressed reinforced circular columns if you can help
I got the R19 as well, I'm interested in compressed reinforced circular columns if you can help
You can change the screen from space claim to design modeler, so that it wont be weird.
Dear DrDalyo, Thank you for this video. Can we use SOLID65 or other elements without using commands? It will be great if you or someone else answers that.
When i made this video, there was no other way to use SOLID65 in workbench. If you use APDL its available but the interface and post graphics processing is dated. Thank you for watching!
Hi Dr ur video was so helpful for me just one more thing can u explain more about Concrete and Rebar commands and thank you so much
Dear Dr DalyO
How can I obtain crack formation by time of analysis?
Thank you in advance.
Thank you DrDalyo for such a useful video. However I have a question that, is it necessary to use command?
when i changed the stress strain table with high strength concrete the ansys did not solve
sir thank you very mush for the video you have no idea how i appreciate it
+Mazin Omer I am not sure whats the problem, but this model is not very stable as it is.. start by making small changes to my code to figure it out more easily.
I begin to use a uhpc.
mm/mm N/mm²
0,00000 0,00000
0,00173 75,00000
0,00184 79,29002
0,00196 83,98509
0,00208 88,27732
0,00220 93,04424
0,00232 97,32686
0,00242 101,32217
0,00255 105,37563
0,00266 109,08479
0,00275 112,06690
0,00285 115,02874
This TBDATA is based on real pressure tests (uhpc cylinder). If i exclude this
!TB,CONCR,MATID,1,9
!TBTEMP,22
!TBDATA,1,0.3,0.8,1.5,25
it works well. Now I am working on that coefficients to reach the crack/crush plots.
Only 4 digit decimal can be put on that command. I once face this issue too.
Dear Dr. DalyO , we are working on diffirent project ( dam design). Our problem is about solution because we have error message all the time (ERROR MESSAGE: the solver engine was unable to converge on a solution for the nonlinear problem as constrained ) . Thanks for your interest.
awesme job, thanks man
Dr DalyO, thank you for this very helpful video. You have mentioned that there are other tutorials that do similar static modelling for concrete/rebar from within Ansys APDL - could you point me to these tutorials please that you refer to when you get an opportunity. From APDL, I am presently endeavouring to model concrete/rebar with stirrups (eventually studying the effect of openings within the concrete beam); I have come across a few relevant tutorials using APDL but would appreciate if you or any of the community could point me to other relevant tutorials (using the APDL development environment please). Many thanks
Hello Dear DrDalyo!
Thank you for this useful video.
Could u make a video for (shear Wall or RCC wall ) with biaxial loading, how would be deformation and cracks.
Thank u very much, waiting for the video.
Me too waiting for that plz
Sir please explain how to give prestress to the beam
Thank you sir for uploading this video, I am trying same analysis for another geometry but it shows an error :
*** ERROR
*** CP = 1.186 TIME= 11:47:34
Duplicate
temperature values were found. The MPTEMP command is
ignored.
please help me to get rid of these errors in this project.
Hello, I encounter the similar problem. Is there any solution for this problem? Your feedback is highly appreciated. Thank you very much.
because , I Need to know Carefully How to Make a good Contacts definition between main bars (top & bottom ) and links also contacts with concrete areas ,, in addition to make a good quality of mesh of Doubly Reinforced Concrete Beam ,,,Thanks Dr.
+MOHAMMED BADRI what is your question.
An unknown error occurred during solution. Check the Solver Output on the Solution Information object for possible causes.
i found this error in workbench solution please solve it
have you found any solution???
NO
Thank you for this video. I tried the example out but got 40 of errors stating "Constraint equation xx has unused node 3581" where xx is a number in the range 1-40. Any assistance to solve this will be appreciated
Same for me also.. please help me to rectify this error
it is really helpful video thank you very mush
Can you please create a post-tensioned RC concrete beam model simulation. How to simulate the cable that compress and cause bend of a beam
sir ,plzz do design beam column joint design and anlysis
please how can i define bond between concrete and rebar in ansys workbench such as (combin39 ) or spring 14? if you can send me code for this definition
Dear DrDalyO,
Thank you for uploading this useful video. Expecting more informative tutorials like this.
Can you please send me the link to the entire report of NGUYEN ?
Thank you,
Regards.
This tutorial is awesome. Thank you so much. I have 1 question, did you ever calculate rc beam strenght by FRP sheet?
I want to solve this problem using ANSYS, using analytical method and in natural experiment. So Im open for all advices))
''Node 4 does not lie on or near the selected elements. The CEINTF
operation produced no results for this node." I have this warning... do you have any idea what is happening?
how to model stirrups
in RC beam
Thankyou Dr Dalyo for the well explained tutorial, although when I tried to replicate the things some errors are appearing like- "one or more bodies may be underconstrained and experiencing rigid body motion. Weak springs have been added to attain a solution." Please tell me if you have any idea about how to overcome such error. Thanks
+rishabh shotri im not sure if this resolves that error, but i remember that i did forget to drop element midside nodes i believe when recording. Check the comments, someone else posted about it. If doesnt help, post another comment here
I am sorry, I didn't understand, I mean what exactly "drop element midside nodes" means. I do have checked for other comments, but unable to find the solution to the error. Thanks
Go to Mesh->Defaults->Element Midside Nodes-> Program Controlled/Dropped/Kept
it is excellent video. sir i want to make tapered rcc beam or haunched beam so how to give non linear section to the beam and how to make model and how to give material like concrete and rebar
sir , Can you make video on drop weight impact analysis on reinforced concrete slab/ beam and also crack pattern analysis. Really appreciate it.
Thank you.
I almost do the same thing, "more than 1 element in at least 2 direction are present."
I have this problem ,could you help me out?
Great video, thanks
DR. DalyO i would like to know that how we can do the modal analysis with the help of simply supported beam in ANSYS
hello Sir ,can you kindly tell me what is the impactor you are talking about?Is it load?Aso will the be same for all RCC structure?
Meaning the location of where the load is applied
I think to avoid error in solution as appear when use solid65 for beam models , should choose dropped mesh for element midside nodes
Hi sir,
thank you for your demonstration.
i tried to model a slab with rebar using this method for my research but an unknown error is showing.
it would be helpful for me if you could upload a video about modeling a simply supported slab in ANSYS 17.2
Thank you
hey dr thanks for this useful tutorial i just want to know that how to expand the symmetry to view the full beam
thanks and regards
Thanks, DrDalyo. I met this problem 'Element type 1 is not the same shape as SOLID65. Switching to a different shape is not allowed while elements of type 1 exist.' It seems when solid65 tries to override Structural Steel, it fails. Do you have any idea about how to fix it?
Hi, I can see concrete material in Ansys workbench 2023. Is it okay to assign that concrete to my reinforced concrete beam?
Awesome video! Thanks a lot. But I have a problem, how could we analyze the prestressed concrete beam in Ansys Workbench？
Thank you for the grat example, sir. I repeated it step by step and received the same results, which is good. But i couldn't receive the stress in the rebar. Is it possible in this way?
+Techcrafter You would need to use more command objects do get these results. I probably should have included this in the tutorial. In the Solution(A6), right click and add command object, insert the following code to see axial force and stress results for the beams:
/SHOW,PNG
/VIEW,1,1,1,1
allsel
ESEL,S,ENAME,,180
ETABLE,Force,SMISC, 1
ETABLE,Sxx-i,LS,1
ETABLE,Sxx-j,LS,2
PLETAB,Force
PLLS,Sxx-i,Sxx-j
allsel
+DrDalyO It worked for me, thanks!
Hi..... I got the force and stress results but cannot interpret its meaning. Are these von-mises stresses or axial stresses? Also what are the units of these forces and stresses?
hi i also repeated it step by step but i didn't receive the same results. Techcrafter could you please help me on this ??
Hi Friend,
I want to add properties of Fe250 steel and M30 concrete ....can u show me where to change the commands.....
Hello sir, I've recently started working in ANSYS Workbench 19.0. I used the APDL commands you have specified with minor changes in the stress and strain, but the deformation is very low when compared to the experimental data. The rebar commands are not influencing the model. It doesn't show any error when I comment Young's modulus or I increase the value exponentially. Could you please help me in this?
Try making large material changes to the rebar commands, see if there is an effect on the results. There should be. If not please let me know.
I tried to reproduce your model sir. I changed the rebar young's modulus to 2e10. I can find no changes in the result, Sir. Kindly help me in this. This would greatly help me in my model progress.
Dear sir,
Please can I get your email ID?
Sir I am following step by step but the commands are not working
Please tell me how to fix this error.."AN unknown error occurred during solution. Check the Solver Output on the Solution Information object for possible causes".???
Thank you for this tutorial, it's help me a lot to use ANSYS Workbench.
But i don't understand one thing, why you use the commend APDL for stress-strain relationship, and didn't put them in engineering data?
Can i put the stress-strain relationship in engineering data? because i have to model a frame under lateral loads
Thank you Dr.Dalyo very much for the video. I used the geometry file from your last video since it includes shear reinforcement in it. I changed the APDL code for rebar by changing the radius of the rebar appropriately. But I get an error,"Node 1578 belongs to element 124. The CEINTF operation will not consider this node/element combination" and this error continues to the rest of the nodes. Can you please help me ? Should I change the APDL code elsewhere or if else where should I ? Would be much appreciated if you could help me ?
+Sivaraman Kiran It might be because the mesh nodes do not line up nicely with the rebar. try to space the rebar evenly, so when you go to create a mesh, the element size will be a multiple of the rebar spacing so the nodes will line up. if the rebar nodes and the concrete mesh nodes are not close, you might get errors.
+DrDalyO thank u very much for ur valuable video as well as ur response. Much appreciated for u work on Ansys
Hello Sir,
I am new to ansys and i am trying to model circular concrete column with biaxial bending. While defining the concrete material as per the apdl commands I am getting an error as, "Element type 1 is not the same shape as SOLID65. Switching to a different shape is not allowed while elements of type 1 exist". Also, if I am to model 3D reinforcement, please can you guide me with the commands for rebar as solid65. Please guide me asap
thank u Dr for ur interesting kindly I want to ask what about pretension prestressed concrete or posttension concrete its possible to modeling it by ansys ? and if we did hole through the concrete and but in these hole beam element as tendon and bonded between them it will work ?
+Ahmed Al-dean i am not familiar with pretension or prestressed elements for this example sorry. It should be possible, please see the ansys help online.
Hi, for link180 element the radius assigment via a real constant is not supported from 14 and later. Instead of you should use SECTYPE and SECDATA commands
If we model reinforcement by slicing the concrete material and provide a bounded contact with the concrete, would it be right ?
plz once make a video on anysys 18.1.. RCC beam and also provide links for codes of materials used
Thank you sir for uploading this video. I have doubt in concrete slab testing i analyse a slab with reinforcement and without reinforcement but the result for the both model is same. Sir pls help me in that problem
Thank you for the tutorial. I have a question. How to match the nodes of concrete and the ones of rebars, if the rebars are positioned random in the section? Thanks!
How can we find out shear force and bending moment diagram for a simply supported beam with some load? Hoping for a suggestion from you sir. Thanks in advance.
Hi, want to ask. If i click the solution for maximum principle stress, the impactor is moving out from the body (concrete). why? can we lock it so that it cannot move?
Fatigue analysis in abaqus using beam model
Dear Dr, for Ansys 2021 R2, can we use the same method to assign the element type and material model as shown in this video? I mean you assign command for each of the geometry element. Thank you
Where can i get these infos which are included in Command file ?
Must commands be added for like these analysis? Why did we enter that?
I'm looking forward for the answers. Very educating video. Thanks sir !
please see the description of the video for the command file. Yes they must be added in workbench, if you use APDL then you can do it there also.
Can you please show how to add stirrups in the beam? Thanks
Am getting an error messege, says tb,plas is no longer supported for solid 65 element.
+Vishnu SNair what ansys version are you running?
Dear Dr. DalyO, good day, as per your above tutorial, I inserted a command for selection of element type (SOLID185)as follow:ET,MATID,SOLID185
R,MATID,0,0,0,0,0,0
RMORE,0,0,0,0,0
MP,EX,MATID,28000
MP,PRXY,MATID,0.2, but I got the following error message:Element type 1 is not the same shape as SOLID185. Switching to a
different shape is not allowed while elements of type 1 exist.What is the problem here?
Hello did you solve this problem can u help me?
If we did not want to use command file then how we will give bond property b/w concrete and reinforcement bars ???? Plz explain it
Sir I am doing transient structural analysis, I am confronting with convergence error. Can you help me in resolving it?
hi dear Dr DalyO how can I access to the word file of " modeling of reinforced concrete beam by nguyen ???could you put the related link thank you
2021 R1 workbench allows to define MISO tabular data for the material. Does that mean using APDL command isn't necessary?
Thank you DrDaylO for the video .
An unknown error occurred during solution: "your product license has numerical problem size limits"??
sir..plz give tutorial on analysis of column strengthened by angle steel shapes and strips using ansys workbench
I have a problem my geometry is complex so it's a tetra mesh is there any way to use the same command the solve is give me error because of concrete elements
Sir,I have a doubt.solid65 element is used for concrete . It is used for all grades like m25, m30 and so on....so how could I particularly use it for a specific grade?should I have to alter it's command
Hi have a good day sir,
How can I obtain the value of the bending angle occurring at the support points of the beams.