Introduction

A brief description of the example.
*MAT_SOIL_AND_FOAM
Soil and Foam Single Element
LS-DYNA Manual Section: *MAT_SOIL_AND_FOAM

Example: Soil and Foam Single Element

Filename: mat_soil_foam.element.k

Description:
This problem contains a single element with one degree of freedom on a side.
The element compresses and expands.

Model:
The element measures 100 cubic inches. One side follows a velocity curve which
results in a range of relative volume (V/Vo) 1.000 to 0.0091 to 1.441.

Input:
The foam follows a pressure volumetric strain relationship (*MAT_SOIL_AND_FOAM).
The unloading behavior may follow either the unloading bulk modulus or the
loading curve. The unloading in the first case follows the bulk modulus,
while the unloading in the second case follows the loading curve. The material
has a cutoff pressure of 0.5.

Results:
The plots show the element pressure versus time.