き裂を有する平板の熱衝撃

概要

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This paper deals with the thermal shock problem of a flat plate with an edge crack, initially at uniform temperature, being suddenly cooled on the plate surfaces. It is assumed that the thermal disturbance near the crack surface may be neglected in the analysis of the temperature field of the elastic solid with a crack because thermal shock occurs rapidly. We analyed the transient thermal stress problem of a flat plate with a crack and determined the stress intensity factor at the crack tip. The nondimensional maximum transient stress intensity factor is expressed as a function of Biot's number and the nondimensional crack length. We then proposed a simplified formulation of the nondimensional maximum transient stress intensity factor as a function of Biot's number and the nondimensional crack length.
社団法人日本機械学会の論文
1989-09-25