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umat or fortran program for masonry contain hill and rankin yield surface in abaqus

Submitted by hossein arab on

I need a yield surface contain hill and rankin for masonry material  in abaqus .  I found a fortran program in the internet and link it  to abaqus but this program didnot work and one of error is that the elements arenot mach .this program was written for 3d  and plane strain .  which element I can use in 3d and  2d ?

Modeling concrete wrapped CFRP sheet using ANSYS

Submitted by kapadiac on
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Hi all

 

I am currently in my Master Degree in Civil Engineering at University of Michigan. I am doing a research on concrete wrapped CFRP sheets and I want to do Finite Element Analysis using ANSYS. I am not able to model concrete in ANSYS. Can anyone please help me out with that.

 

Awaiting the reply....

 

Thank you

Regards

Chirag Kapadia 

Control the node force on the boundary

Submitted by jingzheng on

It is a 3D
cubic cell model out of a whole material,  and it is necessary to make
sure that this cell can represent the whole material so the node forece of the
corresponding nodes on the opposite surface should have the same value and
opposite direction, but I have no idea about how to control the nodes force
(maybe *EQUATION ?), because untill now all the boundary control method is about
controlling the displacement. Does anybody know how? Thank you guys so
much!