Prediction of Crack Initiation Direction for Inclined Crack Under Biaxial Loading by Finite Element Method

Journal of Solid Mechanics

مقاله 5، دوره 2، شماره 3، آذر 2010، صفحه 257-266   

نوع مقاله: Research Paper

نویسندگان

P.C Gope^{* 1}؛ S.P Sharma²؛ A.K Srivastava³

¹Department of Mechanical Engineering, College of Technology, G. B. Pant University of Agriculture and Technology

²Mechanical Engineering Department, National Institute of Technology, Jamshedpur, Jharkhand

³Deputy Manager (Design) Air Craft Upgrade Research and Design Centre, Hindustan Aeronautics Limited

چکیده

This paper presents a simple method based on strain energy density criterion to study the crack initiation angle by finite element method under biaxial loading condition. The crack surface relative displacement method is used to eliminate the calculation of the stress intensity factors which are normally required. The analysis is performed using higher order four node quadrilateral element. The results by finite element method are compared with DET (determinant of stress tensor criterion) and strain energy density criteria. Finite element results are in well agreement with the experimental and analytical results.

کلیدواژه‌ها

Biaxial loading؛ mixed mode؛ Crack Initiation؛ Finite Element Method؛ Crack tip displacement

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