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For safety and land saving, it is important to study the breakup of earth-covered magazine (ECM) due to internal detonation. As experimental study of such problem is very expensive, time consuming and with many limitations in scaling, data collections and analyses, numerical simulation using advanced modelling techniques provides a valuable alternative approach. In this study the commercial dynamic solver LS-DYNA [1] is adopted to carry out the simulations of the magazine breakup by using the cohesive element model. The introduction of cohesive element with zero thickness reduces the time step of calculation dramatically. Hence, it takes several weeks or even several months to run the fully 3D model with cohesive element. In order to make the computation time affordable, here a short-cut strategy is proposed to study the magazine breakup by numerical simulation.

computation; modeling; simulation; short-cut algorithm