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		题名	作者	年代	出处	被引量
	1	PROBABILISTIC MODELING OF BRITTLE FRACTURE WITH PRIOR DUCTILE CRACK EXTENSION显示文摘A computation framework for brittle fracture which incorporates weakest link statistics and a microme- chanics model reflecting reflecting local damage of the material is described.The Weibull stress W emerges as a probabilistic fracture parameter to define the condition leading material failure. Unstable crack propa- gation occurs at a critical value of W which may be attained paior to or following some amount of duc- tile crack extension. A realistic model of ductile crack growth using the computation cell methodology is used to define the evolution of near tip stress fields during crack extension. An application of proposed framework to predict the measured geometry and ductile tearing effects on the statistical distributio of fracture toughness for the pipe line steel welded joint is described.	H. Y. Jing L. X. Huo Y. F. Zhang and F. Minami( 1) College of Material Science, Tianjin University, Tianjin 300072,China 2) Osaka University, Japan)	2000	Acta Metallurgica Sinica(English Letters)2000，13，1：	3

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