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Abaqus 6.9

Hi all,

 

Please could  anyone help me for this?

How to link Abaqus CAE with UMAT subroutine? When I run simulation, it announced that 

"Error in job tensile: Problem during linking - Abaqus/Standard User Subroutines.   This error may be due to a mismatch in the Abaqus user subroutine arguments.   These arguments sometimes change from release to release, so user subroutines   used with a previous release of Abaqus may need to be adjusted.
Job tensile aborted due to errors."

Thanks for your helps

 

TungPhan's picture

The International Conference on Computational Solid Mechanics CSM2008 in Ho Chi Minh City, 27-30 November, 2008

The Conference will be held in University  of Technical Education, Hochiminh City

1,  Vo Van Ngan, Thu Duc, Hochiminh City, Vietnam

November 27-30, 2008

TungPhan's picture

Lemaitre damage material model

The Lemaitre damage material model was developed by Lemaitre for an isotropic linear elastic virgin material with stress-strain law as follows
 \begin{equation}
 \label{eq:22}
 \sigma_{ij}=(1-D)C_{ijkl}\epsilon_{kl} \quad D\in[0,1]
 \end{equation}
 where $D$ represents the extent of damage with the damage evolution law
\begin{equation}
\label{eq:23}
D(\bar{\epsilon})=1-(1-A)\epsilon_{D_{0}}\bar{\epsilon}^{-1}-Ae^{-B(\bar{\epsilon}-\epsilon_{D_{0}})}
\end{equation}

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