Transient Inelastic Thermal Stresses in a Solid Cylinder With Temperature Dependent Properties.

Abstract

Transient temperature distribution in an infinitely long solid cylinder initially at uniform temperature T(,0), subjected to an axisymmetric thermal boundary condition, (immersed in an infinite medium of zero temperature) has been obtained. The mechanical properties of the material are considered to be temperature dependent. Using the available experimental data, an equation for each mechanical property as a function of temperature is obtained. Then, using a numerical method the corresponding transient and residual thermal stresses in a long solid cooling cylinder subjected to a transient axisymmetric temperature distributions are calculated. The residual stresses obtained indicate the same pattern with good agreement between the experimental and computed results. Comparing with other theoretical results, the computed stresses in this investigation is far more accurate.