Elasto-plastic Thermal Stress Analysis in Symmetric Thermoplastic Laminates

Hasan Çallioğlu (1) , Onur Sayman (2) , Necati Ataberk (3)

1 Department of Mechanical Engineering
2 Department of Mechanical Engineering
3 Selçuk University = Selçuk Üniversitesi

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. The orientation angles are chosen as, (0°/90°), (30°/30°), (45°/45°), (60°/60°), (15°/0°), (30°/0°), (45°/0°), (60°/0°), (75°/0°). The Tsai–Hill theory is used as a yield criterion in the solution. Temperature distribution is chosen as þT and T 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.

Mots clés: thermal stress analysis; residual stresses; laminated plates; thermo-plastic composites

Hasan Çallioğlu, Onur Sayman, Necati Ataberk. Elasto-plastic Thermal Stress Analysis in Symmetric Thermoplastic Laminates. Journal of Thermoplastic Composite Materials, 2005, 18 (1), pp.59-76. ⟨10.1177/0892705705041155⟩. ⟨hal-00570791⟩