研究了玻璃纤维增强环氧圆柱管轴向撞击和准静态压缩下的能量吸收特性.总结了稳态压缩的三种宏观破坏模式,即层束弯曲、局部屈曲和横向剪切.从细观角度出发,详细研究了不同宏观破坏模式的复合材料圆柱管的能量耗散机理,并比较了吸能能力.随着铺设角度增大,能量吸收机理由基体控制向纤维与基体共同控制转化,因此能量吸收逐渐增大.本文还比较了撞击和准静态下能量吸收的特点.
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