Evaluating the Impact Tensile Properties of Unidirectional Fibre-Reinforced Composites with Thermoplastic Epoxy Resin(<Special Issue>Solid Mechanics Indispensable for Automobile Engineering)

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  • 熱可塑性エポキシ樹脂をマトリクスとする一方向繊維強化複合材料の衝撃引張り特性評価(<小特集>自動車技術を支える材料力学)
  • 熱可塑性エポキシ樹脂をマトリクスとする一方向繊維強化複合材料の衝撃引張り特性評価
  • ネツ カソセイ エポキシ ジュシ オ マトリクス ト スル 1ホウコウ センイ キョウカ フクゴウ ザイリョウ ノ ショウゲキ ヒッパリ トクセイ ヒョウカ

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Abstract

Impact tensile properties of unidirectional fiber-reinforced composites are evaluated using a tension-type split Hopkinson bar technique. In this study, thermoplastic epoxy resin and three kinds of reinforced fiber such as carbon, E-glass, and T-glass are employed as a matrix and reinforcement, respectively. The experimental results indicate that strain rate has no effect on tensile properties in case that the carbon fiber is employed as reinforcement. On the other hand, the tensile strength and strain of E-glass and T-glass fiber composites are obviously affected by the strain rate. Although both fibreglasses and thermoplastic epoxy resin are shown to be sensitive to the strain rate, the fibreglasses contributes more significantly to the strain rate effects of the maximum stress and strain.

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