爆炸冲击波与高速破片对夹层结构的联合毁伤效应试验研究

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振动与冲击 ›› 2014, Vol. 33 ›› Issue (15) : 184-188.

论文

爆炸冲击波与高速破片对夹层结构的联合毁伤效应试验研究

张成亮，朱锡，侯海量，陈长海

作者信息 +

Experimental study on the combined damage effect of blast waves and high-velocity fragments on composite sandwich plates

ZHANG Cheng-liang ,ZHU Xi, HOU Hai-liang ,CHEN Chang-hai

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文章历史 +

摘要

为探讨爆炸冲击波和高速破片联合作用对夹层结构的毁伤机理，进行了钢-玻璃钢-钢夹层结构空中近爆模型试验，分析了结构变形破坏模式及冲击波与高速破片的联合毁伤机制。结果表明，爆炸冲击波和高速破片联合作用下，结构的毁伤程度远大于冲击波的单独作用。爆炸冲击波单独作用时，夹层结构前、后面板均产生褶皱变形，玻璃钢夹芯板则以大面积分层破坏和纤维层的脱落为主。而在爆炸冲击波和高速破片联合作用下，前面板以反向大变形和中部穿甲大破口为主，后面板以大变形和花瓣开裂为主，玻璃钢夹芯板则产生了较大的穿甲破口和分层破坏。爆炸冲击波能量主要通过前、后面板的塑性大变形和玻璃钢夹芯板的分层破坏吸收。高速破片的动能则主要通过前、后面板的剪切破坏、玻璃钢板的分层破坏和纤维层的拉伸断裂吸收。

Abstract

In order to explore damage mechanisms of composite sandwich plates impacted by blast waves and high-speed fragments, experiments were carried out for sandwich plates with core of steel-GFRP-steel. Deformation modes and combined damage mechanisms of blast waves together with high-velocity fragments were analyzed. It is showed that the damage degree of the sandwich plates when subjected to combined impacts by blast waves and high-velocity fragments is greatly higher than that when just subjected to blast waves. Under blast loads, the front and back faces of sandwich plates were wrinkling, while the middle GFRP laminates were damaged with a large area delamination and fiber layers pull-off. However, under combined impact by blast waves and high-velocity fragments, a large reverse deformation as well as a central big crevasse occurred in front face while large deformation along with petalling appeared in back face. Meanwhile, the middle GFRP laminates were damaged with large delaminatioin with a big piercing hole in centre area. The blast wave energy was mainly absorbed by large deformation of the front and back faces and delamination of the middle GFRP laminate, whereas the kinetic energy of high-velocity fragments was predominately dissipated through shearing failure of the front and back faces, the stretching failure of fiber layers and delamination of the middle GFRP laminate.

导出引用

张成亮;朱锡;侯海量;陈长海. 爆炸冲击波与高速破片对夹层结构的联合毁伤效应试验研究[J]. 振动与冲击, 2014, 33(15): 184-188

ZHANG Cheng-liang;ZHU Xi;HOU Hai-liang;CHEN Chang-hai. Experimental study on the combined damage effect of blast waves and high-velocity fragments on composite sandwich plates[J]. Journal of Vibration and Shock, 2014, 33(15): 184-188