期刊
COMPOSITES PART B-ENGINEERING
卷 32, 期 5, 页码 387-399出版社
ELSEVIER SCI LTD
DOI: 10.1016/S1359-8368(01)00023-3
关键词
buckling; composites
The present study presents the finite element modeling procedure of two composite laminated cylinders exhibiting initial geometric imperfections. Using as input a set of experimental measurements of the cylinder geometry, the application of the skinning method leads to the analytical representation of the cylinder imperfect internal, external and middle surfaces. A finite element mesh is then easily constructed over these surfaces. The results of the analysis are in very good agreement with the experimental strains and buckling load measurements and are used to estimate the knockdown effect of the imperfections on the cylinder buckling behaviour. They are also compared to results obtained by other simpler finite element models, in an effort to evaluate the accuracy of various modeling simplifications. (C) 2001 Elsevier Science Ltd. All rights reserved.
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