K-0603 弾性体中の球状介在物中の急冷相変態による応力焦点化現象(S05-1 複合材料システムの弾性数理モデリング(1))(S05 複合材料システムの弾性数理モデリング)

概要

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When an infinite elastic medium with a spherical inclusion is suddenly subjected to a uniform temperature drop, stress waves occur at the interface of spherical inclusion the moment thermal impact is applied. The stress wave in a inclusion proceeds radially inward to the center of the inclusion. The wave may accumulate at the center and cause very large stress magnitudes, even though the initial thermal stress should be relatively small. This phenomenon is called the stress-focusing effect. The stress wave in an inclusion may be affected by phase transform during the tempering process. This paper analyzes, in an exact manner, the effects of these waves using the ray integrals. The results give a clear indication of the mechanism of thermal and phase transformational stress-focusing effect in an inclusion embedded in the infinite elastic medium.
一般社団法人日本機械学会の論文
2001-08-22