固体的冲击拉伸碎裂

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doi:10.6052/1000-0992-16-004

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

详细信息

通讯作者:
周风华,1964年出生.毕业于中国科学技术大学近代力学系,获理学学士(爆炸力学)和工学硕士(固体力学)学位,1992|1996年在日本东京大学航空宇宙系学习,获得工学博士(航空宇宙工学)学位.毕业后曾在日本国家航空宇宙研究所、美国约翰霍普金斯大学工作10年,从事航空发动机、新材料、冲击动力学、以及计算力学方面研究.2006年归国,在宁波大学从事教学及科研工作.主要研究领域为爆炸与冲击动力学、材料力学、以及计算机辅助工程.发表文章60余篇,在动态断裂和应力波传播等研究领域做出成果.曾获国家自然科学奖二等奖1项(排名第4).

中图分类号:O346.1
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出版历程
- 收稿日期:2016-01-26
- 修回日期:2016-05-03
- 刊出日期:2016-05-20

Fragmentations of solids under impact tension

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

More Information

Corresponding author:ZHOU Fenghua

摘要

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.
- 冲击拉伸/
- 碎裂/
- 脆性和韧性断裂/
- 碎片尺度/
- 碎片分布
Abstract: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.
- impact tension/
- fragmentation/
- brittle and ductile fracture/
- fragment size/
- frag-ment size distribution

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