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激光驱动的微弹道冲击

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微颗粒对材料的高速冲击与诸多重要应用领域密切相关,比如航天器的微陨石撞击、雾霾颗粒对发动机叶片的冲击、冷喷涂技术等。激光驱动颗粒冲击实验(Laser-Induced Particle Impact Test,LIPIT)于2010年被提出,是一种新型动态加载技术,能够对不同维度的多种材料进行微弹道冲击。相较于其他的微弹道技术,LIPIT独特的优势在于能够对单个微颗粒进行有效操控,进而实现各类材料(尤其是低维材料)的单颗粒微弹道高速冲击。本文回顾了LIPIT的发展历程,介绍了其系统构成及工作原理,对基于LIPIT技术的不同维度靶材的微弹道冲击研究进行了评述,主要内容包括:基于弹道动力学分析的能量耗散评估、微弹道冲击下的能量耗散机制、微弹道冲击导致的动力学现象及其相关的物理规律(包括反弹幂律、附着机制)。最后对发展现状和值得进一步研究的问题进行了简要总结。
Laser-induced micro-projectile impact
The high-velocity micro-projectile impact is closely related to many important fields,such as micrometeorite impact on spacecraft,dust impact on engine blades,and cold spray.The laser-induced particle impact test(LIPIT)was proposed in 2010 as a new dynamic loading technique.Compared with other micro-projectile techniques,the unique advantage of LIPIT is its ability to effectively manipulate individual microparticle.A single micro-projectile impact on various targets(especially low-dimensional materials)can be performed using the LIPIT technique.LIPIT has been widely used for studying micro-projectile impact on polymers,nanocomposites,metals,and other materials.In this paper,the development history of LIPIT is briefly reviewed,and the work principle and setup of LIPIT are described in detail.Moreover,the impact of the micro-projectile on various targets is summarized,including the characterization of impact resistance based on the micro-ballistic analysis,the energy dissipation mechanism,the dynamic phenomena(rebound and adhesion),and the physical mechanism(power law of rebound and mechanism of adhesion).This review concludes with a summary of the main aspects that deserve further investigation.The included aspects are as follows:(1)microscale LIPIT technique with higher velocity and ballistic accuracy,(2)LIPIT technique down to nanoscale,(3)energy-dissipation-driven design of high-performance impact-resistant materials,(4)transition mechanism of target deformation and particle adhesion,(5)micro-projectile impact on newly developed materials,(6)target dimensional effect of energy dissipation under micro-projectile impact,and(7)dynamic behavior and damage mechanism of microparticle collisions.

LIPITmicro-projectile impactreboundpenetrationenergy dissipation mechanism

荆晓晖、蔡松林、吴先前、戴兰宏、蒋敏强

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中国科学院力学研究所,非线性力学国家重点实验室,北京 100190

中国科学院大学工程科学学院,北京 100049

中国科学院力学研究所,流固耦合系统力学重点实验室,北京 100190

LIPIT 微弹道冲击 反弹 侵彻 能量耗散机制

国家自然科学基金国家自然科学基金国家自然科学基金中国科学院稳定支持基础研究领域青年团队计划

121252061198810211972345YSBR-096

2024

中国科学(物理学 力学 天文学)
中国科学院

中国科学(物理学 力学 天文学)

CSTPCD北大核心
影响因子:0.644
ISSN:1674-7275
年,卷(期):2024.54(5)