Colloquium of Advanced Mechanics 2016 | |
Solutions of Stress Intensity Factors of Multiple Internal Axial Cracks in Hollow Cylinders | |
Ismail, Al Emran^1 | |
Faculty of Mechanical and Manufacturing Engineering, Unviersiti Tun Hussein Onn Malaysia, Johor | |
86400, Malaysia^1 | |
关键词: Ansys finite elements; Axial cracks; Crack fronts; Crack spacing; Hollow cylinders; Interaction domain; Interaction effect; Shallow cracks; | |
Others : https://iopscience.iop.org/article/10.1088/1757-899X/165/1/012001/pdf DOI : 10.1088/1757-899X/165/1/012001 |
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来源: IOP | |
【 摘 要 】
This paper solved numerically the stress intensity factors of multiple internal axial cracks in hollow cylinders under internal pressure. Semi-elliptical shaped cracks are modelled using ANSYS finite element program and the stress intensity factors are calculated using interaction domain integral which is based on the J-integral. There are two important parameters are considered such as crack aspect ratio, a/t is 0.2, 0.4 and 0.75 and crack spacing distance, d/c is 0.4, 0.7 and 1.1. For multiple internal axial cracks under internal pressure, stress intensity factors along the crack front decreased when crack aspect ratio, a/t is increased. It is also revealed that the role of crack spacing on the stress intensity factor is insignificant especially for the shallow cracks (a/t
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Solutions of Stress Intensity Factors of Multiple Internal Axial Cracks in Hollow Cylinders | 1139KB | download |