Analysis on formulas of concrete plate under contact explosion

作者：Wang Zheng^*; Liang Longhe; Lou Jianfeng

来源：11th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading (DYMAT), 2015-09-07 to 2015-09-11.

DOI：10.1051/epjconf/20159404057

Based on many test data of concrete plates of several thicknesses, this paper presents some new simple engineering formulas for computing critical thickness of scabbing and perforation, the front explosion diameter and the rear scabbing diameter of reinforced concrete plates under contact explosion. For the damage problem of a 20 cm thick concrete target under contact explosion of 1.25 kg TNT charge, the paper gives the numerical simulation results of LS-DYNA software for comparison. The damage zone of concrete plate in numerical simulation is determined by analysis of tension pressure resulted from shock wave reflection on the free boundary. And the numerical simulation results are in basic agreement on the results of these engineering formulas.

• 出版日期2015
• 单位北京应用物理与计算数学研究所