In this paper a general formula for plastic potential including isotropic ductile damagehas been present ed on the basis of the thermodynamics for irreversible
Combining speckle interferometry with photoelasticity,the absolute retardation fringes in 3-Dmodel are obtained by interference of the polarized rays reflected
A type of 3 node triangular element is constructed by the Quasi-conforming method, which may beused to solve the equation of a type of inverse problem of wave p