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Multi-linear isotropic hardening
Posted Jun 17, 2013, 4:01 PM EDT Structural Mechanics & Thermal Stresses Version 4.2a 3 Replies
I'm working on a thermo-mechanical model (including plasticity) and I am defining a hardening function by an interpolation function because I have the stress-strain curve.
The problem is that I have many stress-strain curves, because this curve is dependent on the temperature (I have all stress-strain curves for various temperatures).
My question is, how I can define multiple curves (stress-strain) in my hardening function? A first solution that I tried, was using a temperature-dependent function that multiply one of stress-strain curve (20 ° C):
hardening * F (T)
but I want to know if it is possible to do adding all the experimental data.
Thanks and best regards!