Anisotropic damage of the 2024T3 aluminum alloy

Abstract

This paper presents an anisotropic damage theory that the material damage is characterized by the change in elastic constants without any prior assumptions. From the change in the elastic constants which are found experimentally, the damage effect matrix [M] can be determined. [M] can be used to describe both the magnitude and the degree of anisotropy in material damage. The damage strain energy release rate-[Y] is also derived. The result illustrates the existence of the principal directions of material damage in the 2024T3 aluminum alloy under uniaxial tension and, the existence of the principal directions of material damage may depend on the properties of the material and the state of stresses.