期刊
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
卷 39, 期 17, 页码 4457-4483出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0020-7683(02)00348-7
关键词
finite element analysis; composite beam; delamination; higher-order theory
类别
As a part of an effort to develop a model-supported method for detection of delaminations in composite beams with the use of time responses to external excitations, a finite element formulation for dynamics of a composite beam with delamination and attached piezoelectric actuators is developed. In this formulation account is taken of transverse shear deformation and nonlinear through-thickness variation of the longitudinal displacement. Parameters that characterize the delamination are incorporated into the formulation that makes the finite element model convenient for use in conjunction with damage identification (not discussed in the present paper). Computational predictions of frequencies show good agreement with experimental results. Published by Elsevier Science Ltd.
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