空心玻璃微球-混凝土复合材料的破坏与耗能的研究

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (20) : 158-161.

论文

空心玻璃微球-混凝土复合材料的破坏与耗能的研究

倪小军，沈兆武，蒋耀港，马宏昊

作者信息 +

Experiments on damage of glass microsphere-concrete composite materials and its energy-absorbing performance

NI Xiao-jun, SHEN Zhao-wu, JIANG Yao-gang , Ma Hong-hao

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文章历史 +

摘要

为了获得的制作工艺简单的孔隙材料，利用水泥和空心玻璃微球制成含有孔隙的复合材料，并将该复合材料制成圆柱壳体，进行水下内爆炸实验。通过水下爆炸测试系统得到了爆炸过程中水中超压波形，并结合高速摄影技术捕捉壳体的变形破坏过程。实验结果表明，药柱爆炸后1.5ms，爆炸载荷在复合材料柱壳中形成破裂分界面；柱壳的破坏类型依次为顶部的气泡脉动、中间的爆炸冲击波的膨胀压缩和底部的应力波的拉伸破坏。结合水中超压经验公式和超压的实测值计算了水中冲击波能量占总爆炸能量的比例，计算结果表明空心玻璃微球-混凝土复合材料对爆炸能量能具有良好的耗散作用。

Abstract

In order to obtain a kind of pore materials with simple making, the composite material structure composed of cement and glass microspheres was made. For further study on dynamic response of the composite under explosive loading, base on the pressure measuring system and photography system, pressure-time curves were captured, and the whole deforming and damage process of composite was photographed. The results show that fracture interface of the composite appares at the first1.5ms; Damge type of the Composite, along the propagation direction of detonation, are in sequence of damage to be caused by bubble impulsion，Compression-expansion damage of shock wave and tensile failure of stress wave ;The ratios of the energy of shock waves in water to total energy of explosives are calculated by overpressure measure and experiential formula.

导出引用

倪小军;&#;沈兆武;蒋耀港;马宏昊. 空心玻璃微球-混凝土复合材料的破坏与耗能的研究[J]. 振动与冲击, 2012, 31(20): 158-161

NI Xiao-jun;SHEN Zhao-wu;JIANG Yao-gang;Ma Hong-hao. Experiments on damage of glass microsphere-concrete composite materials and its energy-absorbing performance[J]. Journal of Vibration and Shock, 2012, 31(20): 158-161