The Relationship between Fragmentation Landing Speed and Blast Crater1 Depth
In order to establish relationship between fragments from failure vessels and blast crater in explosive spot of the chemical plant, the resistances of ovalshaped and end-cap fragments were deduced by cavity expansion theory when fragments penetrated into concrete target On this basis, through Newtons second law, the formula was determined about relationship of fragments velocity and blast craters depth. Taking blast crater with 20miles depth as an example, the initial velocity and kinetic energy of fragment about 20 kilograms was analyzed. Results showed that the initial input speed was about 42.35 m/s and kinetic energy was equal to about 8.76 KJ. Compared with the previous data, those results were reasonable.The above results provide theoretical basis to analyze the cause of vessels failure in the view of energy equilibrium.
fragments blast crater cavity expansion theory oblique penetration kinetic energy
Wenling Guan Juncheng Jiang Jiajia Jiang Fang Yu
College of Urban Construction & Safety Engineering Nanjing University of Technology Nanjing, China C College of Urban Construction & Safety Engineering Nanjing University of Technology Nanjing, China
国际会议
贵阳
英文
1060-1063
2011-06-12（万方平台首次上网日期，不代表论文的发表时间）