K-0921 重合メッシュ法による織物複合材料の局所的損傷進展解析(J05-2 強度・破壊機構解析(1))(J05 複合材料の加工と評価)

概要

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There have been many reports on the numerical analysis of damage propagation in woven fabric composite materials. However, most of them studied the behaviors under in-plane loading conditions including tension, compression and shearing. Because composite materials are often used as plates and shells, their out-of-plane bending behaviors are important. To study the micro- or mesoscopic damage propagation under bending, the consideration of micro-macro coupling is a critical issue. A small region to consider the microscopic behavior is subject to macroscopic non-uniform strain field under bending. Therefore, the conventional homogenizing technique is not applicable. In this paper, we propose a new computational method named finite element mesh superposition method to solve this problem. A two-dimensional example of plain woven fabric composites is shown in this paper.
一般社団法人日本機械学会の論文
2001-08-22