Elasto-plastic Thermal Stress Analysis in Symmetric Thermoplastic Laminates

Abstract

In this study, a thermal elastic-plastic stress analysis is carried out in steel fiber-reinforced symmetric thermoplastic laminated plates. The material is assumed to be strain-hardening. Temperature distribution is chosen as þT 0 and ÀT 0 at the upper and lower surfaces, respectively. It is found that plastic yielding occurs at the same temperature; all the orientation angles and the plastic region expands the same at the same temperature.