Crushable foam plasticity models

The crushable foam plasticity models:

  • are intended for the analysis of crushable foams that are typically used as energy absorption structures;

  • can be used to model crushable materials other than foams (such as balsa wood);

  • are used to model the enhanced ability of a foam material to deform in compression due to cell wall buckling processes (it is assumed that the resulting deformation is not recoverable instantaneously and can, thus, be idealized as being plastic for short duration events);

  • can be used to model the difference between a foam material's compressive strength and its much smaller tensile bearing capacity resulting from cell wall breakage in tension;

  • must be used in conjunction with the linear elastic material model (Linear elastic behavior);

  • can be used when rate-dependent effects are important; and

  • are intended to simulate material response under essentially monotonic loading.

The following topics are discussed:

Related Topics
About the material library
Inelastic behavior
Rate-dependent yield
In Other Guides
Defining crushable foam plasticity