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Analysis of Propagating Crack In Isotropic Material under Dynamic Mode I Constant Displacement

동적모드 I 등변위상태하에서 전파하는 등방성체의 균열해석

  • Published : 2000.08.01

Abstract

It has been reported that the dynamic stress intensity factor for a propagating crack is increasing or decreasing according to the increasement of the crack propagating velocity. It is confirmed in this study that the increasement or decreasement of stress intensity factor with crack growing velocity is accused by loading condition. When the crack propagates under a constant displacement along upper and lower boundary in finite plate, the dynamic stress intensity factor decreases according to the increasement of the propagating crack velocity. When the crack propagates under a constant stress along upper and lower boundary in finite plate, the dynamic stress intensity factor increases according to the increasement of the propagating crack velocity. The increasement or decreasement of stress intensity factor with crack growing velocity is greater in a fast crack propagation velocity than in a slow one.

Keywords

Dynamic Stress Intensity Factor;Propagating Crack;Dynamic Mode I Constant Displacement

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