Introduction

*MAT_FRAZER_NASH_RUBBER_MODEL
Frazer-Nash Single Element
LS-DYNA Manual Section: *MAT_FRAZER_NASH_RUBBER_MODEL

Example: Frazer-Nash Single Element

Filename: mat_fn_rubber.element.k

Description:
This model illustrates the behavior of the Frazer Nash rubber model using a
single element.

Model:
The example contains a single element which measures 7.5 * 7.5 * 100. The
element is constrained in the z-direction on the bottom and has prescribed
velocity on the top surface.

Input:
Unitary input for any constant indicates least squares curve fitting.
(*MAT_FRAZER_NASH_RUBBER). The least squares curve fit requires specimen
dimensions and a stress-strain load curve. The model provides the option to
stop the calculation based on maximum and minimum strain values.

Results:
The compressibility of the element and the pressure versus a verage strain are
shown in the plots..

References:
Kenchington, D. C.