Numerical Modeling of Shock Sensitivity Experiments (SSGT)
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摘要:本文用有限元动力学程序对冲击波感度试验（SSGT）进行了二维数值模拟。将JWL状态方程和两项式点火增长模型用于小隔板试验中。计算了受主炸药在冲击作用下的压力历史。根据计算得出HMX/F2641（密度为1.81g/cm3）的隔板值为6.3~6.4mm。计算结果与试验结果相符合，数值模拟的结果有效地展现了试验中难于观察的细节过程。
Abstract:The two-dimensional numerical modeling of shock sensitivity experiments is made with a finite element code. The JWL state equation and two-term ignition and growth model are used in small scale gap test. The pressure history inside the acceptor explosives is calculated. The calculated result shows that the gap thickness of HMX/F2641 (1.81g/cm3) is from 6.3mm to 6.4mm. The calculated value is agreement with the experimental result. The result of numerical modeling shows the details which is hard to observe from the experiments.
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