Perturbations
Perturbation entities provide a means of defining deviations from the designed structure, such as buckling imperfections. Define the stochastic variation in the material models with the STOCHASTIC keyword option.
LS-DYNA Cards
Card | Description |
---|---|
*DEFINE_STOCHASTIC_VARIATION | Define the stochastic variation in the yield stress and damage/failure models for material models with the STOCHASTIC keyword option. This keyword currently works with materials 10, 15, 24, 81, 98 and the shell version of material 123. |
*DEFINE_STOCHASTIC_VARIATION_PROPERTIES | Define the stochastic variation in predefined material model history variables. It is an extension of *DEFINE_STOCHASTIC_VARIATION to more material models and additional material properties. This keyword currently works with materials 10, 15, 24, 81 and 98 as well the shell version of material 123. |