Multi-scale modelling and characterization of 3D woven composites using unit cells

Pan, Q., Li, Shuguang and Sitnikova, E. (2014) Multi-scale modelling and characterization of 3D woven composites using unit cells. In 16th European Conference on Composite Materials, ECCM 2014. European Conference on Composite Materials, ECCM..

Record type: Conference or Workshop Item (Paper)

Abstract

Unit cells have been proven to be an effective tool for material characterisation in conjunction with the use of finite element method (FEM) to predict the effective properties of composites. A key step in the application of unit cells is to impose periodic boundary conditions to the unit cells concerned. Successful imposition of such boundary conditions requires the coordinates of nodes as well as the tessellations on each side of any pair of opposite faces to be precisely related. This requirement is difficult to satisfy in some cases without using a well-developed FE pre-processor. This is especially true for 3D textile composites, such as 3D woven composites. This paper introduces a methodology to incorporate relevant resources from different codes in a single code. This methodology was been integrated into a commercialised software, UnitCells

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