Abstract
In this paper, thermal elastic-plastic stress analysis is carried out on simply supported antisymmetric cross-ply [0°/90°]2 and angle-ply [30°/−30°]2, [45°/−45°]2, [60°/−60°]2, [15°/−15°]2, [15°/−30°]2, [15°/−45°]2, [15°/−60°]2 aluminium metal-matrix laminated plates under constant temperature change through the thickness of plates. The plates are composed of four orthotropic layers bonded antisymmetrically. In the solution, a special computer program has been employed. The composite materials are assumed to be perfectly plastic. Tsai-Hill Theory is used as a yield criterion. Plastic and residual stresses are determined in the antisymmetric cross-ply and angle-ply laminated plates for small deformations. The intensity of stress components in the antisymmetric cross-ply laminated plate is higher than in angle-ply laminated plate due to the differences among the stiffnesses of layers. Plastic yielding occurs in all the laminated plates at the same temperature.
Get full access to this article
View all access options for this article.