| 陶瓷靶抗射流侵彻的理论模型及数值模拟 |
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| 引用本文： | 郭婷婷,任会兰,宁建国.陶瓷靶抗射流侵彻的理论模型及数值模拟[J].固体力学学报,2011(Z1). |
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| 作者姓名： | 郭婷婷 任会兰 宁建国 |
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| 作者单位： | 北京理工大学爆炸科学与技术国家重点实验室; |
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| 基金项目： | 国家自然科学基金(11032002,11172045)资助 |
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| 摘 要： | 以球型空腔膨胀理论为基础,提出了一个计算陶瓷靶板阻力的损伤模型,该模型考虑了损伤因子对陶瓷靶板弹道性能的影响.结合不可压缩流体力学理论,对射流侵彻陶瓷靶板的侵彻速度进行了理论值计算,并与未考虑损伤的侵彻速度进行了比较,该模型的计算结果更接近实验结果.建立了射流侵彻陶瓷靶板的数值计算模型,对铜射流侵彻陶瓷靶的动态破坏过程进行了研究,讨论了药型罩的锥角、壁厚对射流侵彻结果的影响,结果表明:相同锥角的药型罩,壁厚对陶瓷靶板孔径的影响较小;同壁厚的药型罩,随着锥角的增大,侵彻孔径增大.侵彻速度的数值模拟结果与理论结果进行了比较,得到了较好的一致性.
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| 关 键 词： | 射流 空腔膨胀模型 损伤 数值模拟 陶瓷 |
THEORETICAL MODEL AND NUMERICAL SIMULATION OF CERAMIC TARGET AGAINST SHAPED-CHARGE JET PENETRATION |
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| Tingting Guo Huilan Ren Jianguo Ning.THEORETICAL MODEL AND NUMERICAL SIMULATION OF CERAMIC TARGET AGAINST SHAPED-CHARGE JET PENETRATION[J].Acta Mechnica Solida Sinica,2011(Z1). |
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| Authors: | Tingting Guo Huilan Ren Jianguo Ning |
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| Institution: | Tingting Guo Huilan Ren Jianguo Ning(State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing,100081) |
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| Abstract: | A damage model for ceramic target against shaped-charge jet penetration is presented in this paper.The model in which damage factor is considered is developed by the spherical cavity expansion theory.The experiment of jet penetration into ceramic is analyzed by using the damage model in this paper.Compared with the results of model without damage factor,the results of the damage model are closer to the experimental results.Numerical simulation of jet penetration into ceramic is presented,and the influence o... |
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| Keywords: | shaped-charge jet cavity expansion model damage numerical simulation ceramic |
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