き裂を有する中空円筒の熱衝撃

概要

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This paper deals with the thermal shock problem of a hollow circular cylinder with an edge crack, initially at uniform temperature, being suddenly cooled on the circular surfaces. It is asuumed 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 analyzed the transient thermal stress problem of a hollow circular cylinder 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
1990-11-25