Integral equation approach to composite laminate analysis
作者:
Giuseppe Davì,
Alberto Milazzo,
期刊:
Journal of the Chinese Institute of Engineers
(Taylor Available online 1999)
卷期:
Volume 22,
issue 6
页码: 695-708
ISSN:0253-3839
年代: 1999
DOI:10.1080/02533839.1999.9670506
出版商: Taylor & Francis Group
关键词: boundary integral equations;composite laminates
数据来源: Taylor
摘要:
A comprehensive integral equation based approach is presented to determine the elastic response of composite laminates under axial, bending, shear/bending and torsional loadings. The integral equations governing the laminate behavior are directly deduced from the reciprocity theorem for beam‐type structures by employing the fundamental solution of generalized plain strain anisotropic problems. Taking into account the displacement and stress continuity along the interfaces and the external boundary conditions the formulation is numerically solved by the multidomain boundary element method. The resolving system of linear algebraic equations is solved to provide the solution of the problem in terms of displacements and tractions on the boundary of each ply within the laminate. Once this boundary elastic response is determined the displacements and stresses at any point of the laminate can be computed using the appropriate boundary integral representations. The approach, based on a pointwise formulation, makes it possible to analyze laminates with the widest generalities as regards the section shape and lay‐up. Some applications are presented in order to demonstrate the accuracy and effectiveness of the method proposed.
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