Strain hardening in the HEMP code

Publisher Website
Google Scholar
Abstract
The Prandtl--Reuss equations used in the HEMP elastic-plastic computer program are satisfied exactly for elastic, perfectly plastic materials, and are less exact for materials that strain harden. A new method is described for incorporating strain hardening into the flow law that is exact for linear strain hardening and very nearly exact for nonlinear strain hardenlng. A tensile test of a strain-hardening material is simulated using the present method and the previous method. The original approximate method has an accumulated error of less than 2% when compared with the present method. The present method agrees with exact calculations to within 0.05%. (auth)

This publication has 0 references indexed in Scilit: