Modelling nonlinear elastoplasticity of a material using Comsol Multiphysics- Structural mechanics
This tutorial shows a simple example of how non-linear plastic deformation can be modelled using the solid mechanics physics interface. The applied force is gradually increased to a maximum and then reduced to zero. The resulting stress-strain curve is hysteretic due to permanent plastic deformation. The slope of the stress-strain curve when unloading is equal to the slope of the curve in the initial elastic region.
00:00 Introduction
00:38 geometry
01:04 Material selection
02:25 Physics
03:34 Plasticity model
08:03 mesh
08:17 Solver settings
09:44 Results
11:02 Stress-strain curve
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