摘要
试验和工程实践均表明某带孔锚固结构具有较好的抗动载效能,本文运用应力波理论分析其中原因,同时基于有限元软件进行数值仿真计算。结果表明,波的透射所引起能量传递的变化、表面拉伸应力波幅的削减、不同层介质之间吸能密度比的改变是该型结构抗爆性能得到提高的主要原因,为该结构的推广应用提供了理论基础。
Experiment and engineering practice all prove that a structure with cells has excellent property of dynamic load resistance.In this paper the reasons are analyzed by using stress wave theory and simulation based on finite element software.It is pointed out that the transformation of energy transfer,the decrease of stress wave amplitude,and the change of energy density among different layers are main reasons in increasing the ability of resistance.The theory foundation for the application of this structure is given.
出处
《河南科技大学学报（自然科学版）》
CAS
北大核心
2009年第1期53-56,共4页
Journal of Henan University of Science And Technology:Natural Science
基金
国家自然科学基金项目(10772199)
关键词
锚杆
应力波
带孔结构
能量密度
Bolt
Stress wave
Cell structure
Energy density
