Nonlinear Transient Thermal Stress Analysis of Temperature-Dependent Hollow Cylinders Using a Finite Element Model

作者：Zenkour Ashraf M^*; Abbas Ibrahim A

来源：International Journal of Structural Stability and Dynamics, 2014, 14(7): 1450025.

DOI：10.1142/S0219455414500254

• Generalized thermoelasticity
• decaying-with-time thermal load
• annular cylinder
• temperature-dependency
• finite element model

In this paper, the nonlinear transient thermal stress analysis is conducted for temperature-dependent hollow cylinders subjected to a decaying-with-time thermal field. By the finite element method, the highly nonlinear governing equations are solved. The time histories of temperature, displacement, and stress due to the decaying-with-time thermal load are computed. A sensitivity analysis includes the effects of exponent of the decayed heat flux and temperature-dependency of density and material properties is carried out. Numerical results show some interesting characteristics of the thermoelastic behaviors of the hollow cylinders studied. In particular, the effect of temperature-dependency of the material properties on the thermoelastic parameters was demonstrated to be significant.

• 出版日期2014-10