How does the plastic material data in the material model affect the stress results? What relation does Marc use to calculate the redistributed stress after plastic deformation?
How does the plastic material data in the material model affect the stress results? What relation does Marc use to calculate the redistributed stress after plastic deformation?
If you are using an Elasto-plastic material model, Plasticity is triggered at the yield stress defined in plasticity data. Till this point Marc will use Young's modulus and, Beyond this point, Marc will use the plasticity data defined by plastic strain vs true stress table, or any other material model coefficients such as chaboche, johnson cook etc..
Take a look at Marc-UG examples illustrating plasticity, one such example is "e024 - Sheet metal forming with solid shell element".
If you are using an Elasto-plastic material model, Plasticity is triggered at the yield stress defined in plasticity data. Till this point Marc will use Young's modulus and, Beyond this point, Marc will use the plasticity data defined by plastic strain vs true stress table, or any other material model coefficients such as chaboche, johnson cook etc..
Take a look at Marc-UG examples illustrating plasticity, one such example is "e024 - Sheet metal forming with solid shell element".
