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obtain frequency in ansys

i do a second order analysis for apply axial load effect in ansys.

how can obtain frequency with modal analysis in ansys for above explaintion.

i want to solve contact stress problem in ansys. having 2 rollers or one roller rolled on plate.. i tried to solve in ansys 10. pls help me to get solution for this problem

Hi

i want to add a stress relation to abaqus

can i write it in fortran in a way that i can enter specification like c11-c12-....in abaqus then have the calculation of stress in fortran and bring back the result in abaqus to analysis?

brunda's picture

Hi Sina,

 

I am assuming you have a stress-strain relation that is not available in ABAQUS (like Hookean etc.)

 

In that case, you will ne to write a subroutine (UMAT or VUMAT) in Fortran that will have to be called during the run.

 

Brunda

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