期刊
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
卷 45, 期 20, 页码 5322-5336出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijsolstr.2008.05.026
关键词
filament winding; multi-scale modelling; finite element analysis; periodic boundary conditions; polymer-matrix composites
类别
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC)
A two-scale numerical approach to predict the effective in-plane properties of helical filament-wound thin-walled cylindrical tubes is provided. A meso-scale repeated unit cell (RUC) model for a filament-wound tube is established according to the manufacturing process, in which cross-overs, undulations and overlaps of fibre bundles are described using a bottom-up solid modelling technique. An approach to implement the general periodic boundary conditions in a finite element analysis scheme is also presented. As an application example, the effective in-plane elastic constants of glass fibre/epoxy filament-wound tubes are predicted and the influences of the number of the winding circuits and the shape of the fibre bundles are analyzed and discussed. In addition, the stress/strain distribution in the RUC is obtained which provides the essential information on the stress/strain concentration due to fibre cross-over/undulation/overlap. This then indicates the location where damage will initiate. (C) 2008 Elsevier Ltd. All rights reserved.
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