Computation of transient thermal stresses in elastic-plastic tubes: Effect of coupling and temperature-dependent physical properties

2002-06-01
The objective of this study is to obtain the transient solution of the thermoelastic-plastic deformation of internal heat-generating tubes by considering the thermomechanical coupling effect and the temperature-dependent physical properties of the material. The previously developed steady-state model describing the elastic-plastic behavior of the tubes is modified to obtain the transient solution. The propagation of the elastic-plastic interface for a given heat load is obtained; and the corresponding stress, displacement, and plastic strain components are computed. The effect of the coupling is investigated using three different engineering materials, namely, steel, aluminum, and magnesium; and it has been found to be negligible. On the other hand, the temperature dependence of the mechanical and thermal properties affects the computed profiles significantly.

Citation Formats
A. N. Eraslan and Y. Orcan, “Computation of transient thermal stresses in elastic-plastic tubes: Effect of coupling and temperature-dependent physical properties,” JOURNAL OF THERMAL STRESSES, vol. 25, no. 6, pp. 559–572, 2002, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37682.