Two-scale analysis of a filament-wound cylindrical structure and application of periodic boundary conditions
作者： Yunfa Zhang , Zihui Xia , Fernand Ellyin
DOI: 10.1016/J.IJSOLSTR.2008.05.026
关键词:
摘要: Abstract A two-scale numerical approach to predict the effective in-plane properties of helical filament-wound thin-walled cylindrical tubes is provided. meso-scale repeated unit cell (RUC) model for a tube established according manufacturing process, in which cross-overs, undulations and overlaps fibre bundles are described using bottom-up solid modelling technique. An implement general periodic boundary conditions finite element analysis scheme also presented. As an application example, elastic constants glass fibre/epoxy predicted influences number winding circuits shape analyzed discussed. In addition, stress/strain distribution RUC obtained provides essential information on concentration due cross-over/undulation/overlap. This then indicates location where damage will initiate.
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