THERMAL ELASTIC-PLASTIC STRESS ANALYSIS OF SYMMETRIC ALUMINUM METAL-MATRIX COMPOSITE LAMINATED PLATES UNDER LINEARLY DISTRIBUTED TEMPERATURE

Abstract

In this study, thermal elastic-plastic stress analysis is carried out on simply supported symmetric cross-ply (0/90) 2 and angle-ply (30/ m 30) 2 , (45/ m 45) 2 , (60/ m 60) 2 aluminum metal-matrix laminated plates under a linear temperature distribution across the thickness of plates. The temperature distribution is chosen as T 0 and zero at the lower and upper surfaces, respectively. Tsai-Hill theory is used as a yield criterion. Differential equations are solved with a sufficiently large number of integration intervals of the temperature. The composite material is assumed to be strain hardening linearly. The magnitude of the residual stress components of σ x and σ y is the highest at the upper and lower surfaces. Plastic yielding occurs in all the laminated plates at the same temperature.