Dynamics Analysis of Penetration against Pebble-Concrete Target

Huan Yan, Lei Jin*, Shiqiao Gao*, Xiao Xu, Zezhang Li, He Fu

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

1 引用 (Scopus)

摘要

The classical continuum mechanics theory cannot sufficiently describe the effect of pebbles on projectile, which leads to a large calculation error. In this paper, an orthogonal curvilinear coordinate system is constructed, which effectively describes and perfects the normal cavity expansion theory. A couple stress theory based on the normal cavity expansion is proposed in which not only the tangential movements but also the rotations of the concrete medium are considered. According to the high-speed impact of pebble concrete, combined with dynamic equations and the FE simulation, the theoretical and simulation results of pebble particles scale on warhead resistance are compared. It is shown that, the larger the scale of pebble particles, the stronger the effect of rotation on the resistant force applied on the warhead.

源语言英语
文章编号1675
期刊Materials
15
5
DOI
出版状态已出版 - 1 3月 2022

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引用此

Yan, H., Jin, L., Gao, S., Xu, X., Li, Z., & Fu, H. (2022). Dynamics Analysis of Penetration against Pebble-Concrete Target. Materials, 15(5), 文章 1675. https://doi.org/10.3390/ma15051675