C/C複合材料の引張変形特性に及ぼす負荷方向の影響

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タイトル別名
  • Effect of Loading Direction on Tensile Deformation Properties of C/C Composites.
  • C/C フクゴウ ザイリョウ ノ ヒッパリ ヘンケイ トクセイ ニ オヨボス フカ ホウコウ ノ エイキョウ

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抄録

It is known that Young's modulus and tensile strength of composite depend on loading direction, and those are commonly the highest in the loading direction parallel to fiber. But it isn't clear in C/C composite. In this paper, uniaxial and biaxial tensile deformation properties of C/C composite in the direction inclined to fiber were examined by using the strip-type and the cruciform-type specimens with slots . C/C composite showed the large breaking strains and the lower tensile strengths when the tensile loading was given in the direction inclined to fiber. In addition, the linear relationship holds between εx and εy in elastic region and it is independent of biaxial stress ratios T=0, 0.5 and 1.0 under biaxial loading in this material.

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