All materials undergo some deformation under the application of a load.

When the load is removed, a solid material may return to its original state or retain some deformation.

Plasticity: Fundamentals and Applications

Places emphasis on the fundamentals of elastic-plastic deformation. This book includes topics such as stress, strain, constitutive relations, fracture, anisotropy, and contact problems.

In addition, the text also provides a discussion of updated Lagrangian and Eulerian formulations.