A Numerical Study on Internal-Blast-Field Characteristics and Dynamic Response of Concrete by Aluminized Explosive
Three energy release models of aluminized explosive with combustion effects were compared and analyzed, including Miller-Extension model, Additional energy model, Ignition and growth model (Lee-Tarver model). The Ignition and growth model is one three-form equation of reaction rate, which can describe unsteady detonation process of non-ideal explosives well. So, in this paper, the energy release model of aluminized explosive based on the Lee- Tarver rate equation was utilized and an internal-blast dynamic model of concrete was established. Moreover, the smoothed particle hydrodynamics (SPH) method was adopted to research blast field and damage effects of concrete, which widens SPH method for study on explosion of non-ideal explosive in a confined medium, and provides an important way to evaluate the damage effect of internal-blast of concrete.
energy release aluminum explosive internal-blast shock wave dynamic damage
P. Song C. Xiao X. H. Gu
Nanjing University of Science and Technology, Nanjing 210094, China
国际会议
广州
英文
536-538
2011-06-30（万方平台首次上网日期，不代表论文的发表时间）