高寒高海拔多年冻土地区抗侵彻深度的研究

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振动与冲击 ›› 2015, Vol. 34 ›› Issue (22) : 9-12.

论文

高寒高海拔多年冻土地区抗侵彻深度的研究

谭仪忠1，刘元雪1，张裕1，葛增超1，周家伍2

作者信息 +

Discussing of the penetration depth in high-cold and high-altitude permafrost area

Tan Yi-zhong 1 Liu Yuan-xue1 Zhang Yu1 GE Zeng-chao1 Zhou Jia-wu 2

Author information +

文章历史 +

摘要

为了深入探讨弹体对高寒高海拔地区多年冻土侵彻作用，论文从多年冻土的温度特性出发，应用符合冻土特性的摩尔-库伦强度准则推导了多年冻土地区抗侵彻深度理论计算公式，结果表明，该公式能够反映冻土温度与侵彻阻力的关系，是空腔膨胀理论在冻土材料中的一次有益尝试。对理论分析计算结果与Young侵彻公式的计算结果进行比较，其最大侵彻深度与速度变化趋势相一致，也论证了本文理论公式的合理性。通过案例分析发现，多年冻土层的温度状况对弹体的最大侵彻深度的关系较为密切，能够较为客观的反映冻土类材料的特性。

Abstract

In order to discussing the projectile body penetrating into high-cold and high-altitude permafrost area, the paper has built a theoretical calculation formula to calculate the maximum penetration depth. It has deduced by the modified Mohr-coulomb yielding criterion，which can well meet the character of permafrost. The result indicates that the formula can reflect the relationship of permafrost temperature and resistance pressure observably, also that is a good trying in using the cavity expansion theory. Comparing with the theoretical calculation and Young’s penetration equation, the results of the data are changed in the similar trend, thus it has demonstrated the theoretical formula is rational. The calculating model has also showed that the maximum penetration depth is related by the permafrost temperature. It can reflect the characteristics about frozen soil objectively.

导出引用

谭仪忠1，刘元雪1，张裕1，葛增超1，周家伍2. 高寒高海拔多年冻土地区抗侵彻深度的研究[J]. 振动与冲击, 2015, 34(22): 9-12

Tan Yi-zhong 1 Liu Yuan-xue1 Zhang Yu1GE Zeng-chao1 Zhou Jia-wu 2 . Discussing of the penetration depth in high-cold and high-altitude permafrost area[J]. Journal of Vibration and Shock, 2015, 34(22): 9-12

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