内爆炸载荷下双层钢管结构的动力响应

发布时间：2018-03-03 04:10

本文选题：双层钢管　切入点：内爆炸　出处：《振动与冲击》2016年19期 　论文类型：期刊论文

【摘要】：采用实验与数值模拟相结合的方法研究了双层钢管结构在内爆炸载荷作用下的动力响应。考察了内外层钢管的壁厚设置与炸药质量对结构变形失效模式及其抗爆性能的影响。结果表明:与外管壁厚相比,内管壁厚对结构变形失效模式起主导作用,随着炸药质量的增加,内管壁厚对结构变形的影响逐渐减弱;并且内管壁厚的改变显著影响结构的能量分配机制,增加炸药质量时,外管能量耗散增幅大于内管。
[Abstract]:In this paper, the dynamic response of double-layer steel tube under internal explosion load is studied by means of experiment and numerical simulation. The failure mode of wall thickness and explosive mass on structure deformation and its anti-explosion are investigated. The results show that compared with the wall thickness of the outer tube, The inner tube wall thickness plays a leading role in the structural deformation failure mode. With the increase of explosive mass, the influence of inner tube wall thickness on structural deformation gradually weakens, and the change of inner tube wall thickness significantly affects the energy distribution mechanism of the structure and increases the explosive mass. The increase of energy dissipation of outer tube is larger than that of inner tube.
【作者单位】：太原理工大学力学学院;太原理工大学应用力学与生物医学工程研究所;
【基金】：国家自然科学基金项目(1172196;11402163) 山西省自然科学基金项目(2014011009-1)
【分类号】：O38

【相似文献】