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How to add another Elasto Visco-plasticity model other than ANAND Model
Posted Mar 16, 2016, 3:34 a.m. EDT Heat Transfer & Phase Change, Structural Mechanics Version 4.4, Version 5.0, Version 5.1 2 Replies
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i am doing welding simulation and want to apply chaboche visco-plasticity model. I have equations of chaboche model. But when i am trying to apply visco-plasticity there is no option for user defined model so that i can add my model manually. there is only ANAND model available. Can anyone help me plz.
Thanks in advance
Thanks in advance
2 Replies Last Post Apr 1, 2016, 4:31 a.m. EDT
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Posted:
8 years ago
Hi,
There are two ways in which you can do this:
a) Program the material model yourself and use the External strain / External material functionality (requires version 5.2).
or
b) Use a 'User defined' model under Creep, and add extra distributed ODE's for time-marching the evolution of the back stress in the Chaboche model.
Regards,
Henrik
There are two ways in which you can do this:
a) Program the material model yourself and use the External strain / External material functionality (requires version 5.2).
or
b) Use a 'User defined' model under Creep, and add extra distributed ODE's for time-marching the evolution of the back stress in the Chaboche model.
Regards,
Henrik
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Posted:
8 years ago
thanks Henrik for your reply
don't have 5.2 so can't go with ur 1st suggestion.
bt i tried to write equations in ODE's and under creep in user defined model its asking only creep rate tensor!!! i don't understand how to relate that equations in that...can u plz tell
n also if u hav any ready-made simple model file where this problem has been encountered, plz send that wd be very helpfull.
thanks,
manish
don't have 5.2 so can't go with ur 1st suggestion.
bt i tried to write equations in ODE's and under creep in user defined model its asking only creep rate tensor!!! i don't understand how to relate that equations in that...can u plz tell
n also if u hav any ready-made simple model file where this problem has been encountered, plz send that wd be very helpfull.
thanks,
manish