OS0416 損傷進展解析による織物複合材料の疲労寿命評価(先端材料システムの力学とメゾスケールモデリング,オーガナイズドセッション)

概要

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The aim of our study is to develop a conventional method to estimate a fatigue life of textile composite based on damage propagation analysis. The textile composite is treated as heterogeneous bodies with anisotropy for fiber bundles and isotropy for matrix, respectively. The stress distribution in unit cell model of textile is estimated by FEM and damage in each element is evaluated. At the same time, material properties of each element under cyclic loading are estimated from fatigue test results carried out for UD composite. The proposed method is applied to the plain woven CFRP and it is confirmed that the proposed method is applicable to estimation of fatigue life of textile composites. Moreover, it is revealed that the fatigue life distributions are also estimated by considering the scatter of fatigue strength of UD composite.
一般社団法人日本機械学会の論文
2009-07-24