Simulation of Underwater Sympathetic Reaction Tests
To evaluate factors that determine the sympathetic distance between generic disposal charges and to develop analytical methods for predicting sympathetic detonations, a series of scaled underwater sympathetic reactions experiments were conducted to visualise the interaction of an underwater explosion with an explosive material and various simple structures. This paper focuses on the comparison of experimental and numerical results of a detonation of a spherical charge and an initiation of detonation in a Composition B receptor using an explicit finite element hydroeode LS-DYNA. The spherical Pentolite donor charges were modelled with the high explosive burn model with JWL equation of state parameters, whereas an Ignition and Growth (I & G) Model was used for modelling the cylindrical Composition B receptor. The I & G model permits the resolved-reaction-zone simulation of initiation (or failure to initiate), and propagation of detonation in solid high explosives. It was found that the models accurately captured the interaction of underwater shock waves with bare, cylindrical Composition B acceptor charges and the evolution of the sphere donor bubble expanding shape and its size, which was also capable of capturing the physics of detonation inside the explosives and could successfully simulate the underwater explosion tests with good agreement with experimental observations.
simulation underwater sympathetic reaction detonation explosives Composition B
Jing Ping LU Michael CHUNG David L. KENNEDY
WSD, Defence Science and Technology Organisation, PO Box 1500, Edinburgh, SA 5111, Australia Information Technology Department, School of IT and Electotechnology, Victoria University, VIC, Aust Orica Mining Services, George Booth Drive, PO Box 196, Kurd Kurri, NSW 2327, Australia
国际会议
西安
英文
666-671
2007-10-23（万方平台首次上网日期，不代表论文的发表时间）