对空心玻璃微珠填充环氧树脂复合泡沫材料进行了准静态压缩实验,研究了材料的宏观压缩力学性能,并提出了弹性模量和屈服强度的预测公式.此外,对压缩试件的断口进行了宏、细观观察,研究了材料的压缩破坏机理.结果表明,复合泡沫材料在压缩过程中,具有普通泡沫材料的应力-应变曲线的典型特征,在应变为2%左右时材料发生屈服,在应变大于30%后发生破坏.此外,材料的杨氏模量和强度均随密度的减小而下降,预测公式给出的结果与实验值基本一致.压缩试件断口的宏、细观观察表明,复合泡沫材料主要的破坏形式为剪切引起的弹塑性破坏.
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