爆炸与冲击2012，Vol.32Issue(5)：551-556,6.
土中爆炸作用下箱涵动力响应的SPH-FE耦合分析
Coupled SPH-FE analysis for dynamic response of box culvert subjected to subsurface blast
摘要
Abstract
A fully coupled numerical analysis technology is used to simulate the response of a large-scale box culvert under blast load, in which SPH method is adopted to model the near field medium, while FEM is used to model the far field soil and reinforced concrete box culvert. The results show that the damage position and degree are closely related to charge relative position to box culvert. There is an obvious difference among stress and deformation of box culvert under different detonation. Especially at the center position of the wall, there is an obvious effect of soil flow on reload and change of stress under different detonation. The final conclusion show that the coupled SPH-FE analysis technology can satisfy calculation efficiency and engineering requirements.关键词
爆炸力学/动力响应/SPH-FEM耦合方法/箱涵/土中爆炸Key words
mechanics of explosion/ dynamic response/ SPH-FEM coupled method/ box culvert/ explosion in soil分类
数理科学引用本文复制引用
崔溦,宋慧芳,张社荣..土中爆炸作用下箱涵动力响应的SPH-FE耦合分析[J].爆炸与冲击,2012,32(5):551-556,6.基金项目
国家自然科学基金创新研究群体科学基金项目(51021004) （51021004）
国家自然科学基金项目(50809046) （50809046）
