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Dynamic crack propagation in PMMA was studied using the method of caustics in combination with a Cranz-Schardin type high-speed camera. Four different types of specimen geometries were employed to ach...ieve the crack acceleration, deceleration and re-acceleration process in one fracture event. Dynamic stress intensity factor Km and crack velocity a were evaluated in the course of crack propagation to obtain the relationship between Km and a. The effect of crack acceleration and deceleration on the Km-a relations was examined.続きを見る
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Mendeley出力
