【摘要】 利用Johnson Cook材料模型与Grunissen状态方程 ,对长管体侵彻半无限均质靶板进行了数值模拟 ,并与实验进行了比较 .结果表明 ,数值模拟结果与实验结果具有较好的一致性 ,长管体侵彻能力和物理过程受内外径比的影响较大更多还原

【Abstract】 Based on Johnson Cook material model and Gruneisen state equation, the numerical simulation of long tube penetration to semi infinite target is done. The results are contrasted to experiments. It is shown that the experimental results are in good agreement with that of the numerical simulation. The performance and physical process of long tube penetration is constrained greatly by the ratio of inner radio to outer radio.更多还原