Hi every one. Im working on multi yield surfaces j2 plasitisity and if its possible i want add cappability to predict time dependant hehaivior of geomaterials. to start i must wright an umat code for multi yield surfaces j2 model. please help me how can i find it or give me any information about it. thanks for every one.
UMAT for viscoelasticity
You can find one in my PhD thesis
Richter, Frank
Upsetting and Viscoelasticity of Vitreous SiO2: Experiments, Interpretation and Simulation
available at
http://opus.kobv.de/tuberlin/volltexte/2006/1179/index.html
Good luck !
Frank
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Ruhr-University
Bochum
Germany
In reply to UMAT for viscoelasticity by Frank Richter
Also, there is a trivial
Also, there is a trivial simple example in the Viscoelasticity chapter of http://www.amazon.com/exec/obidos/ASIN/1420054333/booksoncomposite
In reply to UMAT for viscoelasticity by Frank Richter
Hi, Richter, So kind you
Hi, Richter,
So kind you are, and I really appreciate you very much.
But currently I use the program LS-DYNA, not ABAQUS.
Does anyone has the subroutine for LS-DYNA ?
Thanks.
Hi every one. Im working on
Hi every one. Im working on multi yield surfaces j2 plasitisity and if its possible i want add cappability to predict time dependant hehaivior of geomaterials. to start i must wright an umat code for multi yield surfaces j2 model. please help me how can i find it or give me any information about it. thanks for every one.