A strip element method is presented for analyzing waves scattered by a crack in an axisymmetric cross-ply laminated composite cylinder. The cylinder is at the outset discretized as axisymmetric strip elements through the radial direction. The application of the Hamilton variational principle develops a set of governing ordinary differential equations. The particular solutions to the resulting equations are found using a modal analysis approach in conjunction with the Fourier transform technique. The complementary solutions are formulated by the superposition of eigenvectors, the unknown coefficients of which are determined from axial stress boundary conditions at the tips of the crack. The summation of the particular and complementary solutions gives the general solutions. Numerical examples are given for cross-ply laminated composite cylinders with radial cracks. The results show that the present method is effective and efficient. [S0021-8936(00)00202-6]
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June 2000
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A Strip Element Method for Analyzing Wave Scattering by a Crack in an Axisymmetric Cross-Ply Laminated Composite Cylinder
Z. C. Xi,
Z. C. Xi
Department of Mechanical and Production Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 11926
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G. R. Liu,
G. R. Liu
Department of Mechanical and Production Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 11926
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K. Y. Lam, Mem. ASME,
K. Y. Lam, Mem. ASME
Department of Mechanical and Production Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 11926
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H. M. Shang, Mem. ASME
H. M. Shang, Mem. ASME
Department of Mechanical and Production Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 11926
Search for other works by this author on:
Z. C. Xi
Department of Mechanical and Production Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 11926
G. R. Liu
Department of Mechanical and Production Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 11926
K. Y. Lam, Mem. ASME
Department of Mechanical and Production Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 11926
H. M. Shang, Mem. ASME
Department of Mechanical and Production Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 11926
Contributed by the Applied Mechanics Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF APPLIED MECHANICS. Manuscript received and accepted by the ASME Applied Mechanics Division, May 3, 1999; final revision, December 7, 1999. Associate Technical Editor: A. K. Mal.
J. Appl. Mech. Jun 2000, 67(2): 427-429 (3 pages)
Published Online: December 7, 1999
Article history
Received:
May 3, 1999
Revised:
December 7, 1999
Citation
Xi , Z. C., Liu , G. R., Lam , K. Y., and Shang , H. M. (December 7, 1999). "A Strip Element Method for Analyzing Wave Scattering by a Crack in an Axisymmetric Cross-Ply Laminated Composite Cylinder ." ASME. J. Appl. Mech. June 2000; 67(2): 427–429. https://doi.org/10.1115/1.1303800
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