Homogenised elastic-viscoplastic constitutive behaviour of periodic open structures subjected to internal pressure and macrostrain

摘要: This paper describes constitutive modelling of the homogenised elastic–viscoplastic behaviour periodic open structures subjected to internal pressure and macrostrain. We consider structures, made metallic materials, having spaces in which acts independently First, a elastic model this class is rationally developed by evaluating analytically anisotropic macrostress induced pressure. then extended on assumption that macrostrain rate additively decomposed into viscoplastic parts. It shown depends difference between The verified applying it an ultrafine plate–fin structure operating at high temperature.