How useful or difficult it is while meshing the welds? Also have you covered workbench and APDL interface in your videos. Please share the link. Excellent video anyway. Thanks
Weld meshing is depend on the weld modeling if you have modelled surface weld then it is very easi to mesh, but if you have modelled solid weld then you need do fine and mapped mesh. You can easily do meshing for weld in workbench, for shell mesh you have additional option for weld in ANSYS 2020R1. APDl workbench interface video link: th-cam.com/video/XSYRnEfPMqA/w-d-xo.html
We can idealized weld by using bonded contact or creating actual weld modeling. If you are looking stresses on weld then create integral weld. It can be created by using existing structure or you can create new weld body. Like in present case you can use weld command.
Please brief clearly ? You might asking If weld is not there then how to create ? If you dont want to model weld then you just need to extend the midsurface for creating connectivity.
Hello Mahesh, There are different ways to do welding simulation. The more accurate is transient thermal coupled structural simulations., Here we need to apply heat on adjoining bodies with respect to different welding passes, we need to solve accurate welding process so that we can find out residual stresses. It is very time consuming & costly process. Hence, most of industries prefer to do regular FEA simulation in which weld need to model as solid & shell with same material of adjoining bodies with all operational loads. You can refer other videos for second method, where we model weld. First method is difficult to capture through video tutorials.
@@graspengineering9249 I had done moving heat source analysis as a weld simulation and coupled with structural interface. But failed to get residual stresses generated. I want to know, After weld passes through each increment what is residual stresses generated behind.
first of all thankss for this video, can you please do one favor on us. which type of model you are using in video just share with us or give us some idea how to make that type of model. for example you are sing compressor table on this video so how we can do that on same model. i think you understood????? pleasee share with uss
Hello & thank you for appreciation ! Most of cad model used are refereed from grab-cad library. You can refer link of the video below: th-cam.com/video/JdJ2FTcvFKc/w-d-xo.html. Also we started uploading cad model too, refer this link: grabcad.com/grasp.engineering-1/models
Hi, you can discuss here. Midsurface is nothing but surface for which you need to define sizing and define few shell mesh controls. Please check our surface or base frame video's for shell mesh.
@@graspengineering9249 Hi, Thank you for ur reply . Is it going to be ok to do midurfaces for parts of my geometry not all parts ? I asked this question because when I do some parts , the edges are not extended to be aligned with edges of the parts ( which I did not create midsurfaces for ). I hope you got what I mean Thank you 🙏
@@dontaco5459 Hello , Yes you use solid mesh for complex geometry and shell mesh for mappble (plate section geometry) in combination. When you extract midsurface their differences may happen while dong connection this is due to varying thickness of different components. In such case you can even create contact at edges or even create inclined weld.
@@graspengineering9249 Thank you very much for ur reply . Your answer showed me that u understood me correctly . The thing is I have an Ansys case file , with tutorial ready, I just want to redo with little change in geometry and try to run. I did the change the geometry and mesh it but the case did not work . Maybe if u look at it with your little experienced touches in my case , will work . I wish if I could contact you and show you . I will pay for ur time Thank you 🙏
@@dontaco5459 Welcome, Please join us on Patreon and get answer to all your queries and benefits as per membership. Patreon: www.patreon.com/user?u=19779352
As name suggests, Midsurfcae is middle surface. Bars or rods have only outer surface and hence Midsurfcae can not be extracted. You can extract Midsurfcae for hollow tubes, as hollow tubes or pipes have top and bottom surface. When you have mappble, planer geometry or sheet metal parts, we use Midsurfcae technique.
The discussion of what is a midsurface and how and why it is constructed was very useful.
Hi Very Nicely Explained. Can you please share 3D model for practice
Hi Very Nicely explained. Can you please share the 3D model for practice
Very useful video
Thank you
How useful or difficult it is while meshing the welds?
Also have you covered workbench and APDL interface in your videos. Please share the link.
Excellent video anyway. Thanks
Weld meshing is depend on the weld modeling if you have modelled surface weld then it is very easi to mesh, but if you have modelled solid weld then you need do fine and mapped mesh. You can easily do meshing for weld in workbench, for shell mesh you have additional option for weld in ANSYS 2020R1.
APDl workbench interface video link: th-cam.com/video/XSYRnEfPMqA/w-d-xo.html
thank you very much.can you share the 3dmodel to practice ?
Sure..I will
Super video
Thanks
very nice video Thank You for this🙏🙏🙏
Thank you !
Hi, Nice video. Can you please share some videos on how to do weld assessment by eurocode or en standards without modelling welds??
Thank you. Sure we will add...
hi
please ca you tell me thet weld should be formed form part with the attached body or contact should be given?I am facing a problem
We can idealized weld by using bonded contact or creating actual weld modeling. If you are looking stresses on weld then create integral weld. It can be created by using existing structure or you can create new weld body. Like in present case you can use weld command.
Sir would mind to tell how to handle midsurface if weld option is not available?
Please brief clearly ? You might asking If weld is not there then how to create ? If you dont want to model weld then you just need to extend the midsurface for creating connectivity.
Please upload the video on welding simulation in ANSYS workbench.
Waiting for your reply.
Ty.
Hello Mahesh, There are different ways to do welding simulation. The more accurate is transient thermal coupled structural simulations., Here we need to apply heat on adjoining bodies with respect to different welding passes, we need to solve accurate welding process so that we can find out residual stresses. It is very time consuming & costly process. Hence, most of industries prefer to do regular FEA simulation in which weld need to model as solid & shell with same material of adjoining bodies with all operational loads. You can refer other videos for second method, where we model weld. First method is difficult to capture through video tutorials.
@@graspengineering9249 I had done moving heat source analysis as a weld simulation and coupled with structural interface. But failed to get residual stresses generated.
I want to know, After weld passes through each increment what is residual stresses generated behind.
Thanks sir now I understand mid-surface
first of all thankss for this video, can you please do one favor on us. which type of model you are using in video just share with us or give us some idea how to make that type of model. for example you are sing compressor table on this video so how we can do that on same model. i think you understood????? pleasee share with uss
Hello & thank you for appreciation ! Most of cad model used are refereed from grab-cad library. You can refer link of the video below: th-cam.com/video/JdJ2FTcvFKc/w-d-xo.html. Also we started uploading cad model too, refer this link: grabcad.com/grasp.engineering-1/models
Can I get the CAD Model for practice ?
We will try to upload in our blogpost soon. Link for other cad videos: www.graspengineering.com/category/design/fea-cad-geometry/
Hi.
Is it possible to contact u ? And how ?
Please , is it possible to show how to mesh the mid-surface case ?
Hi, you can discuss here. Midsurface is nothing but surface for which you need to define sizing and define few shell mesh controls. Please check our surface or base frame video's for shell mesh.
@@graspengineering9249
Hi,
Thank you for ur reply .
Is it going to be ok to do midurfaces for parts of my geometry not all parts ? I asked this question because when I do some parts , the edges are not extended to be aligned with edges of the parts ( which I did not create midsurfaces for ). I hope you got what I mean
Thank you 🙏
@@dontaco5459 Hello , Yes you use solid mesh for complex geometry and shell mesh for mappble (plate section geometry) in combination. When you extract midsurface their differences may happen while dong connection this is due to varying thickness of different components. In such case you can even create contact at edges or even create inclined weld.
@@graspengineering9249
Thank you very much for ur reply .
Your answer showed me that u understood me correctly .
The thing is I have an Ansys case file , with tutorial ready, I just want to redo with little change in geometry and try to run. I did the change the geometry and mesh it but the case did not work . Maybe if u look at it with your little experienced touches in my case , will work .
I wish if I could contact you and show you .
I will pay for ur time
Thank you 🙏
@@dontaco5459 Welcome, Please join us on Patreon and get answer to all your queries and benefits as per membership. Patreon: www.patreon.com/user?u=19779352
How can we extract mid surface for bars and rods?
As name suggests, Midsurfcae is middle surface. Bars or rods have only outer surface and hence Midsurfcae can not be extracted. You can extract Midsurfcae for hollow tubes, as hollow tubes or pipes have top and bottom surface. When you have mappble, planer geometry or sheet metal parts, we use Midsurfcae technique.
Then how to solve it plz up load
Please find more FEA solutions videos on our channel.
Find in description link
sir ...can you upload cadd file
You will find in Grabcad portal.
@@graspengineering9249 can you share link sir
Hi again
Welcome back
Sir please shear thr cad file
Okay, We will try to upload. Yu can find similar on grabcad library portal too.