Bibliography

(eng): This contribution surveys models for evolution of twinning and inelastic response of crystallic materials due to martensitic phase transformations. Then a focus is devoted to a mesoscopical evolution model in a scalar situation based on a simple 2nd-order evolution variational inequality. A rate-independent dissipation mechanism is involved and shown by computer experiments to make possible a modelling of inelastic response of crystallic materials like shape-memory effects.