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作业解析 2

作业解析 2. 玻璃纤维 / 环氧树脂单层复合材料由 2.5kg 纤维与 5kg 树脂组成。已知玻璃纤维的弹性模量 E f =85GPa ，密度  f =2500kg/m 3 ，环氧树脂的弹性模量 E m =5GPa ，密度  m =1200kg/m 3 。. 试求： 垂直于纤维方向和平行于纤维方向的弹性模量 E y 和 E x 。. m 3. 作业解析 2. 解： 1 ．首先，确定纤维所占体积比；. 纤维和基体的总体积. 纤维所占体积比；. 作业解析 2. 解： 2 ．确定复合弹性模量；. 平行于纤维方向的复合弹性模量；. 垂直于纤维方向的复合弹性模量；.

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作业解析 2

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  1. 作业解析2 玻璃纤维/环氧树脂单层复合材料由2.5kg纤维与5kg树脂组成。已知玻璃纤维的弹性模量Ef=85GPa，密度f=2500kg/m3，环氧树脂的弹性模量Em=5GPa，密度m=1200kg/m3。 试求：垂直于纤维方向和平行于纤维方向的弹性模量Ey和Ex。

  2. m3 作业解析2 解： 1．首先，确定纤维所占体积比； 纤维和基体的总体积 纤维所占体积比；

  3. 作业解析2 解： 2．确定复合弹性模量； 平行于纤维方向的复合弹性模量； 垂直于纤维方向的复合弹性模量；

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