拓扑互锁陶瓷复合靶板的抗侵彻性能研究

Research on anti-penetration performance of topological interlocking ceramic composite target plates

摘要

基于自然界灵感组合形式下的拓扑构造结构往往具有比单一结构更为优异的性能。为了探索拓扑构造结构陶瓷金属复合板的抗冲击性能，本研究建立了陶瓷金属复合板模型。在六面体与八面体的拓扑互锁单元构造形式的基础上，以拓扑互锁块的厚度比、互锁角、单元块边长为变量，模拟并探究不同拓扑互锁结构对复合板整体抗冲击性能的影响。通过侵彻各结构复合板后的变形损伤云图，得到了拓扑构造结构陶瓷金属复合板在互锁部分中的损伤特性，并进一步通过对比分析了侵彻过程中的弹体剩余速度。本次模拟的分析结果表明：六面体与八面体单元只有达到适中的厚度配比（6 mm）才能够发挥复合靶板的抗冲击性能；互锁角的大小对拓扑结构的啮合程度起着至关重要的作用，其中六面体与八面体单元的最优互锁角分别为15°和10°；八面体互锁单元构造的复合板的抗侵彻性能整体优于六面体单元。

Abstract

Topological structures based on combinations inspired by nature often have better performance than single structures. In order to explore the impact resistance of topologically structured ceramic-metal composite panels, this study establishes a model based on the topological interlocking unit construction form of hexahedron and octahedron, and explores the influence of different topological interlocking structures on the overall impact resistance of composite panels by varying the thickness ratio, interlocking angle, and unit block side length. By analyzing the deformation damage cloud diagram after penetrating each structural composite plate, we can observe the damage characteristics in the interlocking part of the topological structure ceramic-metal composite plate and further analyze the residual velocity of projectiles during penetration through comparison. The simulation results indicate that only when the hexahedral and octahedral units reach a moderate thickness ratio (6 mm), can their impact resistance be fully utilized; furthermore, the size of the interlocking angle plays a crucial role in the meshing degree of the topological structure. The optimal interlocking angles of hexahedral and octahedral units are 15° and 10° respectively; generally speaking, the penetration resistance of composite panels constructed of octahedral interlocking units is generally better than that of hexahedral units.

关键词

陶瓷金属复合板 / 拓扑互锁结构 / 抗弹性能

Key words

ceramic metal composite plate / topological interlocking structure / bulletproof performance

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基金资助

国家自然科学基金资助项目(11972267)

国家自然科学基金资助项目(11802214)

国家自然科学基金资助项目(12102313)