small strain (additive strain decomposition) elastoplastic code

[Muhammad Mashhood]

Dear deal.ii users,

                            Hi! I am trying to setup quasi static thermoelastoplastic code using the step-26 (thermal analysis) and step-42 (elastoplastic dynamics). But there is one limitation after coupling both physics with these two codes that when the thermal or mechanical loading is removed (after the already certain cells of the domain are plasticized) the body comes back into the original state of zero displacement or zero strain every where. In summary it does not stores the plastic strain at the end.

Does anyone have idea if there is already any other deal.ii code for small strain elastoplasticity (additive decomposed approach) to be coupled with thermal analysis?

It would be nice addition in my code to fasten up my project. Thank you in advance!

Regards,

Muhammad Mashhood 

[Wolfgang Bangerth]

I don't know whether any plasticity codes are publicly available, but you
might want to use the list of publications based on deal.II to see what you
can find and whether the authors are willing to share their codes with you:
https://dealii.org/publications.html#list
There is a search box for publications that lists at least 20 publications if
you enter "plast".

I suppose you've already found the code gallery?
https://dealii.org/code-gallery.html
There are also some codes that might be interesting to you.

Best
W.

--
------------------------------------------------------------------------
Wolfgang Bangerth email: bang...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/

[Andrew McBride]

Are you sure that the existing plasticity code (step-42) is behaving incorrectly? Can you demonstrate this via a simple example (consider only the mechanical problem)? I find this conclusion very surprising.

Best
Andrew

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[Muhammad Mashhood]

Great idea Prof. Bangerth. Thanks!

[Muhammad Mashhood]

Hi! Andrew. I would not say it is giving wrong results because the objective for which it is written is being well fulfilled. But for my application, I need the output of plastic strains, plastic flow and hardening coefficients values along with the isotropic plastic hardening. As well as storing the history of the plastic strains or displacement in the cells when even the load is removed. Moreover the temperature dependent material properties are also there so I thought step-42 would not be enough for me by now and need something new and a bit advanced. 

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