期刊
COMPOSITE STRUCTURES
卷 122, 期 -, 页码 209-216出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2014.11.048
关键词
Composite sandwich cylindrical shells; Buckling; Uniform external pressure; Clamped edges; Galerkin method
资金
- Ministry of Education and Science of the Russian Federation [14.574.21.0082]
An approximate analytical solution of the buckling problem formulated for a composite sandwich cylindrical shell subjected to a uniform external lateral pressure is presented in the paper. Both ends of the shell of finite length are fully clamped. The problem is solved using the Galerkin method. The analytical formula for the critical load has been obtained and verified by comparison with a finite-element solution. Based on this formula buckling analyses of sandwich pipes with different types of core materials normally used in underwater applications have been performed. Applications of the formula to the solutions of design problems have been demonstrated for the clamped-clamped sandwich pipes considering constraints imposed on the value of critical pressure. (C) 2014 Elsevier Ltd. All rights reserved.
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