Hi

i am studying adhesive joints of sandwich panel.I used contact elemet in  ANSYS software to modeling adhesive but my solution did not converge.I used smaller elements and increased the number of susteps, but they could not help me. do you know what the problem is?

thanks in advance,

Best Regards

Aidin Ghaznavi

With great pleasure I inform you that Yoichiro Matsumoto, of the University of Tokyo, is selected to receive the 2010 Ted Belytschko Applied Mechanics Award.

Hello,

 I am using abaqus to do research on polarization procedure of piezoelectric materials. I want to develop a user subroutine that can allow me to input variable piezoeletric material properties and do coupled problem. I want to know if UMAT can solve this problem or I need to use other subroutine. If there is that subroutine, what is it.  Any suggestion is appreciated.

 Thanks in advance,

Linhui Zhang

hello everyone,

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Since I started, I faced several issues. They are overconstraint, numerical singularity and negative eigen values. I managed to resolve both of them. However, the behavior from my model is nowhere near the experimental data that I have. It seems that the model is excessively stiff.

Harley T. Johnson has just been selected to receive the 2010 Thomas J.R. Hughes Young Investigator Award.

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