UMAT Subroutine for nonlinear kinematik Hardening Chaboche

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UMAT Subroutine for nonlinear kinematik Hardening Chaboche

Mehrdad70
Hello Everyone! https://de.pons.com/%C3%BCbersetzung/englisch-deutsch/Hello+Everyonedoes anyone have a UMAT Subroutine for nonlinear kinematik Hardening Chaboche model?

thanks
regards
Mehrdad
 

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Re: UMAT Subroutine for nonlinear kinematik Hardening Chaboche

Frank Richter-2

Hello

try this paper:


Fully implicit integration and consistent tangent modulus in
elasto-plasticity
Author: Issam Doghri
November 1993
International Journal for Numerical Methods in Engineering 36(22):3915 -
3932
https://onlinelibrary.wiley.com/doi/abs/10.1002/nme.1620362210
Abstract
This paper deals with the numerical integration of a class of
rate-independent elasto-plastic models. The backward Euler scheme is
used to integrate the rate constitutive relations. The non-linear
equations obtained are solved by the Newton method. The consistent
tangent modulus is obtained by exact linearization of the algorithm. In
the case of J2 elasto-plasticity with non-linear isotropic hardening and
non-linear kinematic hardening (Chaboche-Marquis model), explicit
formulas are derived, without any approximations.

Good luck

Frank


Am 20.11.2019 um 18:42 schrieb [hidden email] [Abaqus]:

>
>
>       Hello Everyone!
>
> <https://de.pons.com/%C3%BCbersetzung/englisch-deutsch/Hello+Everyone>does
> anyone have a UMAT Subroutine for nonlinear kinematik Hardening
> Chaboche model? thanks regards Mehrdad
>
>
>