固体的冲击拉伸碎裂 
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英文篇名Fragmentations of solids under impact tension
期刊名称力学进展
作者郑宇轩; 周风华; 胡时胜; 余同希
摘要固体材料在冲击拉伸载荷作用下常常会断裂成多个碎片(碎片化),固体材料碎片化的物理机制是多点损伤同时在固体中成核和发展,导致固体多处破坏.自Mott对固体的动态碎裂问题进行了开创性研究后,几十年来,对固体动态碎裂机制的研究一直是应用物理学、力学、航天和兵器工程等领域共同关心的重要课题.本文介绍了在冲击拉伸载荷作用下固体的动态碎裂研究的发展历史,给出相关的理论分析、实验研究和数值模拟的研究进展,特别针对现有的各种关于碎片尺度、碎片分布、以及碎片化物理机制的理论模型进行了较详尽的阐述和讨论,最后指出现有实验和理论研究中仍然存在的关键科学问题及进一步的研究展望.
英文摘要Materials usually break into many pieces (fragments) under high strain-rate tension. Understanding the fragmentation properties of solids is important to the researchers in fields of physics, mechanics, aerospace and defense engineering. In this paper, we reviewed the researches on tensile fragmentation undertaken since 1940s. Recent advances in the fragmentation studies from theoretical analysis, experimental investigation, and numerical simulation are addressed. Some suggestions were provided for the future development in this field.
关键词冲击拉伸; 碎裂; 脆性和韧性断裂; 碎片尺度; 碎片分布
英文关键词impact tension; fragmentation; brittle and ductile fracture; fragment size; frag-ment size distribution
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开始页码506
结束页码540
DOI10.6052/1000-0992-16-004
点击率415
作者地址1. 宁波大学教育部冲击与安全工程重点实验室, 宁波 315211;
2. 中国科学技术大学中科院材料力学行为和设计重点实验室, 合肥 230027;
3. 香港科技大学机械与航空航天工程系, 香港 999077
英文作者ZHENG Yuxuan, ZHOU Fenghua, HU Shisheng, YU T.X.
英文作者地址1. MOE Key Laboratory of Impact and Safety Engineering, Ningbo University, Ningbo 315211, China;
2. CAS Key Laboratory for Mechanical Behavior and Design of Materials, The University of Science and Technology of China, Hefei 230027, China;
3. Department of Mechanical and Aerospace Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, 999077, Hong Kong, China

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