/Elastic.java/1.3/Sat Dec 26 22:19:26 2009//
/Elastoplastic.java/1.4/Sat Dec 26 22:19:26 2009//
/SpringMaterial.java/1.3/Sat Dec 26 22:19:26 2009//
/ThermoElastoplastic.java/1.4/Sat Dec 26 22:19:26 2009//
