A modified Swift law for prestrained materials. (English) Zbl 0969.74012

From the summary: We propose a modified Swift law to describe the evolution of mechanical behaviour in reloading of prestrained materials. This equation is deduced from the original Swift law by including a parameter that accounts for the effect of strain path change. This parameter depends on the value of yield stress and on the subsequent work-hardening behaviour in reloading. The new equation predicts well the general mechanical behaviour in the second path for copper and steel.


74C05 Small-strain, rate-independent theories of plasticity (including rigid-plastic and elasto-plastic materials)
Full Text: DOI