Nonlinear Elasticity Curve

General discussion about Elmer
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elmdbsim07
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Joined: 02 Jan 2024, 20:16
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Nonlinear Elasticity Curve

Post by elmdbsim07 »

Dear all,

I am a newbie with Elmer (but versed in other FEM simulation tools) and trying first tutorials.
As far as I understand, in the tutorial "ElasticHookNonlinear" nonlinear elasticity is applied.
But in Elmer and this tutorial case files I cannot find the nonlinear stress-strain curve of the Austenitic steel as table values?
Who can help and tell me, where to find this nonlinear curve?

Many thanks,
Dieter
kevinarden
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Re: Nonlinear Elasticity Curve

Post by kevinarden »

Elmer, by default, only includes geometric non-linear behavior not material non-linear behavior. When the tutorial speaks of non-linear it is refering to geometric non-linear behavior.

Too include material non-linear behavior in Elmer you must write your own material model subroutines.
Last edited by kevinarden on 02 Jan 2024, 23:12, edited 1 time in total.
kevinarden
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Re: Nonlinear Elasticity Curve

Post by kevinarden »

You may want to look at these
viewtopic.php?t=6943
viewtopic.php?t=6929
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