摘要
通过实验研究了多层吸能元件在冲击波作用下的大变形模式，基于虚速度原理建立了问题的模态近似解．实例计算表明理论值与实验结果吻合很好，分析了材料硬化、动态应变率以及元件静态承载力、层数和惯性对结果的影响．
Large deformation model of multilayered energy-absorbing elements under blast wave is analyzed experimentally. A modal approach based on the virtual velocity principle is employed to obtain an estimated solution. Several practical examples are studied and the obtained results are in agreement with the experimental ones. The effects of strain hardening, the dynamic strain rate of material, static load-bearing capacity of element, number of layers and inertia of the elements on the results are analyzed.
出处
《固体力学学报》
CAS
CSCD
北大核心
1999年第3期237-244,共8页
Chinese Journal of Solid Mechanics
关键词
多层吸能元件
大变形
冲击波
模态解
multilayered energy-absorbing element, large deformation, blast wave, modal solution
