An approximate 3-dimensional analysis to study the effects of a system of transverse and longitudinal matrix cracks in cross-ply laminates is given. The method considers a repeating unit cell containing three subcells in every one of which the displacement vector is expanded to second order. The equilibrium equations, in conjunction with continuity conditions of displacements and tractions, together with the appropriate loading and boundary conditions, provide a system of equations for the elastic field variables. The dependence of the effective axial stiffness and Poisson’s ratio of the laminate on the cross-cracks density is given. The Poisson’s ratio appears to be a good indicator for the state of damage of the laminate. The distribution of the axial displacement and stress in the cracked laminate is shown.
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June 1988
Research Papers
Three-Dimensional Analysis of Laminates With Cross Cracks
J. Aboudi,
J. Aboudi
Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
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S. W. Lee,
S. W. Lee
Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
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C. T. Herakovich
C. T. Herakovich
Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
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J. Aboudi
Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
S. W. Lee
Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
C. T. Herakovich
Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061
J. Appl. Mech. Jun 1988, 55(2): 389-397 (9 pages)
Published Online: June 1, 1988
Article history
Received:
August 11, 1987
Online:
July 21, 2009
Citation
Aboudi, J., Lee, S. W., and Herakovich, C. T. (June 1, 1988). "Three-Dimensional Analysis of Laminates With Cross Cracks." ASME. J. Appl. Mech. June 1988; 55(2): 389–397. https://doi.org/10.1115/1.3173688
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