A simple crash test tutorial on an empty circular tube USING ABAQUS. The material used is mild steel using Jhonson Cook steel model. Subscribe for more ABAQUS and FEA tutorials.
Thank you very much for the video. Is that possible to use the "Riks Method" to obtain the Energy absorption results of the above structure? Could you please also let me know that what the difference will be if using "Riks method" ? Thank you very much!
Thanks for your video but unfortunately you did not reply to most of the questions in the comment list. It is painful because it is almost the only video of youtube doing a full analysis of a tube up to the energy absorption and because even amazing videos may need explanations. Actually my questions are already in the previous comments but did not get answer from you. I will ask again hoping that you or someone who understood well will help me. I need to understand why to compute the energy absorption in excel you did ''0.5*(C5-C3)'' from where did you get this 0.5. And if you see this message, please send me here the corresponding paper. Thanks.
hi,In my opinion,energy is calculated by intergrated the area under the curve, and when we calculate the area of triangle,we use: 0.5*bottom side length*hight of triangle. so that's why the author use 0.5( just from my perspective),wish this thought give you some idea~
good tutorial . it helps me a lot . but can you show another tutorial if we use multiple tube of tubular structure instead of single tube ? with aluminium foam in it . i will be so grateful
+ramesh sah You have to accumulate the energy at each distance (mm) and then plot the accumulation against the length or distance. For example you have a table of two columns, the first one is the energy absorbed at each displacement and the other one is where you are going to accumulate the total energy absorbed. In the first row of the empty 2nd column you drag the first row of the 1st column, and thus you will have the first energy point. Now in the rest of the rows of the 2nd empty column, you will need to add the first row of the 1st column + the 2nd row of the 1st column. And then using excel you can drag to apply this relation to the rest of the column. Now you plot this column against the distance.
hi,In my opinion,energy is calculated by intergrated the area under the curve, and when we calculate the area of triangle,we use: 0.5*bottom side length*hight of triangle. so that's why the author use 0.5( just from my perspective),wish this thought give you some idea~
thanks for video, I cant to do like you, I follow you step by step, but in the end I have a problem, it write to me ''Error when processing tie definition. Analysis Input File Processor exited with an error.''
Heyy..at the end of the result in Excel sheet the Graph (Force Vs Displacement) you plot it, mine one is different from yours though I used the same value that you have used and follow all the steps. Your first peak plot below 2,50,000 and mine one goes above 2,50,000.. Kindly please help me..
The paper's title is "Design of thin wall structures for energy absorption applications: Enhancement of crashworthiness due to axial and oblique impact forces".
can u tell me why the length is 350 mm and why u take 45.5 for diameter of the tube instead of the real diameter ? how u get it ? pls reply need this explanation
Tarlochan, F., Samer, F., Hamouda, A. M. S., Ramesh, S., & Khalid, K. (2013). Design of thin wall structures for energy absorption applications: Enhancement of crashworthiness due to axial and oblique impact forces. dx.doi.org/10.1016/j.tws.2013.04.003 you can download the document. that simulation from this documents
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this video helps me a lot to pass the final study and get a good mark. thanx a lot :))
THANK YOU VERY MUCH FOR THIS TUTORIAL
You are welcome !!!!
Thank you very much for the video.
Is that possible to use the "Riks Method" to obtain the Energy absorption results of the above structure? Could you please also let me know that what the difference will be if using "Riks method" ?
Thank you very much!
Thanks for your video but unfortunately you did not reply to most of the questions in the comment list. It is painful because it is almost the only video of youtube doing a full analysis of a tube up to the energy absorption and because even amazing videos may need explanations. Actually my questions are already in the previous comments but did not get answer from you. I will ask again hoping that you or someone who understood well will help me. I need to understand why to compute the energy absorption in excel you did ''0.5*(C5-C3)'' from where did you get this 0.5. And if you see this message, please send me here the corresponding paper. Thanks.
hey you get the answer?
hi,In my opinion,energy is calculated by intergrated the area under the curve, and when we calculate the area of triangle,we use: 0.5*bottom side length*hight of triangle. so that's why the author use 0.5( just from my perspective),wish this thought give you some idea~
@@xiaoyaozhao5585 your opinion is right!
Can you help us with an end-of-year project topic on energy absorbers for vehicles (crash boxes)
In energy absorption calculation, In D column of excel , why you calculated up to 24 cells. i mean up to displacement
Thanks for the video
Sir would you please tell me how to do the same deformation with the help of load n velocity in quasi static manner fr ex 120kn @ 3mm/min !!!
thank you sir for this videos
Thanks your video so much. I wonder Can we run this simulation with "STATIC,RIKS" instead of "DYNAMIC EXPLICIT"?
good tutorial . it helps me a lot . but can you show another tutorial if we use multiple tube of tubular structure instead of single tube ? with aluminium foam in it . i will be so grateful
Were you able to simulate with aluminium foam in it. If yes please reply I want to do the same>
thanks
thanks for video. pl. tell me how to plot total energy absorbed vs crushing length graph
+ramesh sah You have to accumulate the energy at each distance (mm) and then plot the accumulation against the length or distance. For example you have a table of two columns, the first one is the energy absorbed at each displacement and the other one is where you are going to accumulate the total energy absorbed. In the first row of the empty 2nd column you drag the first row of the 1st column, and thus you will have the first energy point. Now in the rest of the rows of the 2nd empty column, you will need to add the first row of the 1st column + the 2nd row of the 1st column. And then using excel you can drag to apply this relation to the rest of the column. Now you plot this column against the distance.
How do you have calculated the energy? I don't understand calculations energy "=0,5*(C5-C3)"
Thank you for reply from anybody
hey did u get the answer?
did someone got the answer?
hi,In my opinion,energy is calculated by intergrated the area under the curve, and when we calculate the area of triangle,we use: 0.5*bottom side length*hight of triangle. so that's why the author use 0.5( just from my perspective),wish this thought give you some idea~
thanks for video, I cant to do like you, I follow you step by step, but in the end I have a problem, it write to me ''Error when processing tie definition. Analysis Input File Processor exited with an error.''
do you have any plasticity values or johnson cook model for any other material????
Heyy..at the end of the result in Excel sheet the Graph (Force Vs Displacement) you plot it, mine one is different from yours though I used the same value that you have used and follow all the steps.
Your first peak plot below 2,50,000 and mine one goes above 2,50,000..
Kindly please help me..
sir...can this type analysis can be done using ansys explict dynamics?....
can we say that total strain energy developed is equal to energy absorbed during impact by structure??
+ramesh sah Yes. This is the whole idea of these structures, they absorb energy by deformation.
Could you give the paper you used in the video? Just tell me the title of the paper and i will make it myself.Thank you very much!
The paper's title is "Design of thin wall structures for energy absorption applications: Enhancement of crashworthiness due to axial and oblique impact forces".
Sam Sami Thank Y very much.
very good！
can u tell me why the length is 350 mm and why u take 45.5 for diameter of the tube instead of the real diameter ? how u get it ? pls reply need this explanation
Tarlochan, F., Samer, F., Hamouda, A. M. S., Ramesh, S., & Khalid, K. (2013). Design of thin wall structures
for energy absorption applications: Enhancement of crashworthiness due to axial and oblique impact forces.
dx.doi.org/10.1016/j.tws.2013.04.003
you can download the document. that simulation from this documents
i have some question,why you only count the energy absorbtion only till number 24 on excel? please help
i think it is because displacement maximum its placed in 24
how to calculate crush force efficiency using abaqus
can i you sir give me the name of this article please
tq. it really help me! :D
You guys may wanna check out more abaqus tutorials at: wp.me/P98FoK-1J
link for down load
Can you help us with an end-of-year project topic on energy absorbers for vehicles (crash boxes)
Can you help us with an end-of-year project topic on energy absorbers for vehicles (crash boxes)
Can you help us with an end-of-year project topic on energy absorbers for vehicles (crash boxes)
Can you help us with an end-of-year project topic on energy absorbers for vehicles (crash boxes)