Debris Behavior and Damage Characteristics of Lattice Structures under Hypervelocity Impact

IF 8.3 1区工程技术 Q1 ENGINEERING, CIVIL

Thin-Walled Structures Pub Date : 2026-04-09 DOI:10.1016/j.tws.2026.114953

Guiyang Guan , Jianxiang Li , Zhiyong Yin , Qunyi Tang , Xiaowei Chen

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引用次数: 0

Abstract

The continued degradation of low earth orbit environment has intensified the risk of space debris impact on spacecraft, signaling the urgent need for high-performance protective structures. Lattice structures, featuring high specific strength and stiffness, excellent design flexibility and multifunctionality, are regarded as promising protective structures. Their three-dimensional open channels, however, yield protection and damage evolution distinct from conventional shielding materials. In this study, an FE-SPH adaptive coupling method is employed to develop a numerical model of the hypervelocity impact of a spherical projectile on a lattice structure. The simulations verify the open channels permitting fragment penetration, clarify the mechanisms linking fragment motion to target damage, and reveal the effects of lattices on the debris cloud generation, development, and morphology. Results indicate that pronounced channeling effect and insufficient target fragmentation lead to low energy absorption efficiency and the formation of highly threatening dominant debris jets, ultimately resulting in suboptimal shielding performance. The systematic analysis conducted in this study provides a corresponding reference for the subsequent research on lattice structures applied to space debris shielding.

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超高速碰撞下晶格结构的碎片行为与损伤特性

近地轨道环境的持续恶化加剧了空间碎片撞击航天器的风险，迫切需要高性能的防护结构。格构结构具有较高的比强度和刚度、良好的设计灵活性和多功能性，是一种很有发展前途的防护结构。然而，它们的三维开放通道产生了与传统屏蔽材料不同的保护和损伤演变。本文采用FE-SPH自适应耦合方法建立了球面弹丸对晶格结构超高速撞击的数值模型。模拟验证了允许碎片穿透的开放通道，阐明了将碎片运动与目标损伤联系起来的机制，并揭示了晶格对碎片云产生、发展和形态的影响。结果表明：通道效应明显，目标破碎度不够，导致能量吸收效率低，形成高威胁性的优势碎片射流，最终导致屏蔽性能不理想。本研究的系统分析为后续空间碎片屏蔽中晶格结构的研究提供了相应的参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Thin-Walled Structures 工程技术-工程：土木

CiteScore

9.60

自引率

20.30%

发文量

801

审稿时长

66 days

期刊介绍： Thin-walled structures comprises an important and growing proportion of engineering construction with areas of application becoming increasingly diverse, ranging from aircraft, bridges, ships and oil rigs to storage vessels, industrial buildings and warehouses. Many factors, including cost and weight economy, new materials and processes and the growth of powerful methods of analysis have contributed to this growth, and led to the need for a journal which concentrates specifically on structures in which problems arise due to the thinness of the walls. This field includes cold– formed sections, plate and shell structures, reinforced plastics structures and aluminium structures, and is of importance in many branches of engineering. The primary criterion for consideration of papers in Thin–Walled Structures is that they must be concerned with thin–walled structures or the basic problems inherent in thin–walled structures. Provided this criterion is satisfied no restriction is placed on the type of construction, material or field of application. Papers on theory, experiment, design, etc., are published and it is expected that many papers will contain aspects of all three.