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Transactions: WSEAS TRANSACTIONS ON APPLIED AND THEORETICAL MECHANICS
Transactions ID Number: 53-340
Full Name: Jia-Yen Huang
Position: Professor
Age: ON
Sex: Male
Address: 35 Lane 215 Chung-Shan Rd. Sec. 1, Taiping City, Taichung County 411, Taiwan
Country: TAIWAN
Tel: 886423924505-7926
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E-mail address: jygiant@ncut.edu.tw
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Title of the Paper: Dynamic analysis of cracks running at a constant velocity in a strip
Authors as they appear in the Paper: Jia-Yen Huang
Email addresses of all the authors: jygiant@ncut.edu.tw
Number of paper pages: 10
Abstract: The scattering of a time-harmonic anti-plane shear (SH) wave by finite length cracks with constant velocity in an elastic medium is considered. In the first case, cracks are assumed to propagate in an infinite elastic space. In the second case, the problems of propagation of subsurface crack and edge crack propagating with uniform velocity in a half-space are treated. In the third case, based on the extension of the dislocation model and images method for the free surface, an analysis of the scattering of SH waves by cracks moving in a strip is carried out. The effects of the wave number, crack velocity and relative position of the cracks are presented. The dynamic stress intensity factors (SIFs) are numerically computed and the results are shown graphically.
Keywords: Finite length moving cracks, Subsurface crack, Edge crack, Antiplane shear waves, Galerkin numerical method
EXTENSION of the file: .doc
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