Numerical simulation of welding
Numerical simulation of welding
(OP)
I am looking for information on simulating welds (specifically arc line welds, but any information is good) using finite element analysis.
I am interested in modeling the resulting stresses and distortions in sheet material assemblies. I don't care about the details of the weld itself (beyond what is necessary to capture the physics), but am more concerned with the effects of the process.
Are there any specific areas which somebody could recommend I search. I understand the basics of welding, but I am an FEA analyst by profession. If somebody could recommend some welding publications which may address this, or some research groups at universities, etc. I would be appreciative.
If somebody knows of journals, websites, etc. please let me know.
Thank you,
Brad
I am interested in modeling the resulting stresses and distortions in sheet material assemblies. I don't care about the details of the weld itself (beyond what is necessary to capture the physics), but am more concerned with the effects of the process.
Are there any specific areas which somebody could recommend I search. I understand the basics of welding, but I am an FEA analyst by profession. If somebody could recommend some welding publications which may address this, or some research groups at universities, etc. I would be appreciative.
If somebody knows of journals, websites, etc. please let me know.
Thank you,
Brad





RE: Numerical simulation of welding
http://www.louisville.edu/~s0zhan03/
http://www.mscsoftware.com/support/library/conf/auto00/p06300.pdf
RE: Numerical simulation of welding
Thanks for the links. However, I am interesting in nonlinear aspects of the distortion of the joined metals (as opposed to details of the modeling of the weld itself).
I appreciate the post. If you know of any others, please let me know.
Thank you,
Brad
RE: Numerical simulation of welding
http://www.esi-group.com/products/sysweld/publications.html (1.7 MB).
http://www.esi-group.com/products/sysweld/SWpc2000.pdf (2.3 MB).
http://www.esi-group.com/news/success/sysweld/success_story_sysweld.pdf (0.74 MB).
RE: Numerical simulation of welding
Irwin
RE: Numerical simulation of welding
You will need to understand distortion, which is a complex mechanism. The problem is that it occurs in three dimensions as a result of residual stresses caused by contraction forces, these stresses can be up to yield point in level. They are influenced by the speed of welding, heat input and weld metal deposition rate.
The above web site gives lots of information on how to control distortion which might be a good place to start.
John
www.gowelding.com
RE: Numerical simulation of welding
What you are describing is what I am looking for--in fact I am looking for material relevant to this very phenomenon. Sadly, I am not able to access these sites which you gave--are you sure that the url given is correct?
Thanks,
Brad
RE: Numerical simulation of welding
http://techreports.larc.nasa.gov/ntrs/hget.cgi?recon?3002/3=/raid5/index/star/update%25157742%203002%20N19980002506recon1.
E-mail your librarian to have her obtain and e-mail an electronic copy if it looks promising. Good luck.
RE: Numerical simulation of welding
RE: Numerical simulation of welding
Bob,
I am in agreement with your points. I have found some useful literature, and it is clear to me that merely capturing the effects of all of the cross-functional disciplines involved is a chore in itself. Actually quantifying appropriate variables is a whole other beast.
I can't begin to correlate to tests until I have a reasonable understanding of how to model this from a mechanics standpoint. I think it is noteworthy (and frankly more useful) that there are many more "weld" people posting on my query than there are FEA people (I cross-posted this question).
This looks to be an area for future mechanics development.
Thanks for your recommendations, and keep them coming if anybody has more.
Best regards,
Brad
RE: Numerical simulation of welding
RE: Numerical simulation of welding
I'm seeking data for the temperature depending specific heat and conduction for my welding simulations.
Is there any databases available online?
Best regards
Chris
RE: Numerical simulation of welding
I'm seeking data for the temperature depending specific heat and conduction for my welding simulations.
Is there any databases available online?
Best regards
Chris