论文信息 - Analysis of structural response under blast loads using the coupled SPH-FEM approach

Analysis of structural response under blast loads using the coupled SPH-FEM approach

A numerical model using the coupled smoothed particle hydrodynamics-finite element method (SPH-FEM) approach is presented for analysis of structures under blast loads. The analyses on two numerical cases, one for free field explosive and the other for structural response under blast loads, are performed to model the whole processes from the propagation of the pressure wave to the response of structures. Based on the simulation, it is concluded that this model can be used for reasonably accurate explosive analysis of structures. The resulting information would be valuable for protecting structures under blast loads.

Xi-la Liu | Jun-xiang Xu | Xi-la Liu | Jun Xu

[1] Bibiana Luccioni,et al. Analysis of building collapse under blast loads , 2004 .

[2] J. Monaghan,et al. Smoothed particle hydrodynamics: Theory and application to non-spherical stars , 1977 .

[3] Rade Vignjevic,et al. Coupling between meshless and finite element methods , 2005 .

[4] L. Lucy. A numerical approach to the testing of the fission hypothesis. , 1977 .

[5] H. Hao,et al. A full coupled numerical analysis approach for buried structures subjected to subsurface blast , 2005 .

[6] D. C. Drucker,et al. Soil mechanics and plastic analysis or limit design , 1952 .

[7] Du Yixin. Blast shock and vibration of underground structures with conventional weapon , 2006 .

[8] Zhongqi Wang,et al. A comparative study of buried structure in soil subjected to blast load using 2D and 3D numerical simulations , 2005 .

[9] W. Herrmann. Constitutive Equation for the Dynamic Compaction of Ductile Porous Materials , 1969 .

[10] E. Lee,et al. Adiabatic Expansion of High Explosive Detonation Products. , 1968 .

[11] Zhi Zong,et al. Smoothed particle hydrodynamics for numerical simulation of underwater explosion , 2003 .

[12] Yong Lu,et al. Characterization of structural effects from above-ground explosion using coupled numerical simulation , 2006 .