Blunt crack-tip elastoplastic zone of mixed mode fracture

被引：0
作者：
Mehdi Khojastehpour
机构：
[1] Ferdowsi University of Mashhad,Department of Biosystems Engineering
来源：
Acta Mechanica Solida Sinica | 2014年 / 27卷
关键词：
crack; fracture; elastic plastic materials; stress concentration;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This article discusses the characterization of fracture process zone at the tip of a blunt crack in elastoplastic materials under mixed mode loading. The analysis includes the description of elastoplastic zone geometry around the blunt crack tip for predicting crack growth direction. The deformed zone appearing at the crack front is described by presenting a criterion based on the subloading surface concept falling within the framework of unconventional plasticity. The mixed mode crack propagates along the minimum value of the elastoplastic region. The present solutions are reduced to those previously reported in literature, when the elastic perfectly plastic material is considered.
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页码：531 / 541
页数：10
相关论文
共 82 条
[1]  
Pook LP(1971)The effect of crack angle on fracture toughness Eng. Fracture Mech. 3 205-218
[2]  
Eftis J(1978)The inclined crack under biaxial load Eng. Fracture Mech. 10 43-67
[3]  
Subramonian N(1982)An analysis of the mixed-type stress field near a crack-tip region Eng. Fracture Mech. 16 35-46
[4]  
Chou CT(1987)The stationary value of the third stress invariant as a local fracture parameter (Det.-criterion) Eng. Fracture Mech. 27 643-652
[5]  
Kuo CP(1988)Crack initiation under biaxial loading Eng. Fracture Mech. 29 585-598
[6]  
Papadopoulos GA(1989)New concepts on the Det.-criterion Eng. Fracture Mech. 33 283-293
[7]  
Papadopoulos GA(1992)A model for predicting crack growth rate for mixed mode fracture under biaxial loads Fatigue Fract. Engng. Mater. Struct. 15 825-844
[8]  
Papadopoulos GA(2000)Role of plastic zone in crack growth direction criterion under mixed mode loading Int. J. Fracture 102 341-353
[9]  
Shlyannikov VN(2003)Closed-form solutions for the model II crack tip plastic zone shape Int. J. Fracture 122 L137-L142
[10]  
Braude NZ(2003)Analysis of crack growth and crack-tip plasticity in ductile materials using cohesive zone models Int. J. Plasticity 19 849-882
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