Learning Forum

[drdmsthesis]

Hi,

Can Multilinear Isotropic Hardening be used with BEAM188/189 elements? I was seeing some conflicting information online, while the online documentation indicates - Bilinear isotropic hardening, Bilinear kinematic hardening, Chaboche nonlinear kinematic hardening, Creep, Coefficient of thermal expansion, Damage evolution law, Damage initiation criteria, Density, Elasticity, Hill anisotropy, Prony series constants for viscoelastic materials, Rate-dependent plasticity (viscoplasticity), Rate-independent plasticity, Shift function for viscoelastic materials, Shape memory alloy (SMA), State variables (user-defined), User-defined, Voce isotropic hardening law. Bilinear models indicate fictitious stress during plastic collapse while it apprears that BEAM188/189 is not supported for a multilinear kinematic/isotropic plasticity.  

Thank you 

[Mike Rife]

Hi drdmsthesis - there are several material models under the "Rate-independent plasticity" including the Multilinear Isotropic Hardening model.  Mike

[bhagwantP]

 

Thanks Mike.

@ drdmsthesis, Kindly refer:

Chapter 4: Element Support for Material Models (ansys.com)

4.4. Rate-Independent Plasticity (ansys.com)

Thanks