Fracture analysis of conical shells containing an internal semi-elliptical crack
Publish Year: 1401
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_ANMD-1-1_003
تاریخ نمایه سازی: 6 دی 1401
Abstract:
Conical shells play a significant role in different branches of engineering such as aerospace and oil industries. The purpose of this paper is to analyze the fracture behavior of metallic conical shells containing an internal semi-elliptical crack. An accurate three-dimensional finite element method is employed to model the conical shell using ANSYS standard code. Special singular elements are used to consider the square-root singularity at the semi-elliptical crack front. Stress intensity factors of the cracks which placed in different positions of the shell is calculated. To confirm the accuracy of the present finite element model, both stress distribution of the structure and stress intensity factor of the crack in special case are compared with published results. The effect of different geometrical parameters on the stress intensity factor of the cracks are investigated. Results show that the crack aspect ratio has a significant effect on the stress intensity factor of the cracks.
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Authors
C. Burville
Department of Mechanical Engineering, the University of Melbourne Parkville, VIC ۳۰۱۰, Australia.
M.M. Kheirikhah
Department of Mechanical Engineering, the University of Melbourne Parkville, VIC ۳۰۱۰, Australia.
S. Omidi
Faculty of Industrial and Mechanical Engineering, Qazvin Branch, Islamic Azad University Qazvin, Iran.
S. Gohari
Department of Mechanical Engineering, the University of Melbourne Parkville, VIC ۳۰۱۰, Australia.
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