Simulating large plastic deformation + defining material
Simulating large plastic deformation + defining material
(OP)
Hi, I am a Cosmos DesignSTAR user and I am trying to find out what the best way would be to define plastic material
behaviour.
I have to simulate loading of a part until breach. The construction is totally manufactured with alloy steel.
The material has a strain (after breaking) from 22%.
Will it be satisfying to use bilinear material for this
kind of analysis or do I have to use a more sophisticated
approach?
Does anybody have some suggestions for me?
Greetings,
Gilbert
behaviour.
I have to simulate loading of a part until breach. The construction is totally manufactured with alloy steel.
The material has a strain (after breaking) from 22%.
Will it be satisfying to use bilinear material for this
kind of analysis or do I have to use a more sophisticated
approach?
Does anybody have some suggestions for me?
Greetings,
Gilbert





RE: Simulating large plastic deformation + defining material
UTS+
YIELD+
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RE: Simulating large plastic deformation + defining material
We just tested the parts today, but we didn't even measure
elongation. We reached the breaking point way long before
our FEA model has. The point at which we predicted yield
was also the breaking point. One thing we didn't put in
the model was the behaviour of the welding material.
I think I have to look at special theory for crack
initiation and propagation of welded connections.
Thanks,
Gilbert
RE: Simulating large plastic deformation + defining material