冲击载荷下Al2O3陶瓷的动态响应

李平; 李大红; 宁建国; 经福谦

doi:10.11858/gywlxb.2002.01.004

冲击载荷下Al2O3陶瓷的动态响应

doi: 10.11858/gywlxb.2002.01.004

李平^1,2,,
李大红¹,
宁建国²,
经福谦^1,3

1.
中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室，四川绵阳 621900；
2.
北京理工大学机电工程学院，北京 100081；
3.
西南交通大学物理研究所，四川成都 610031

详细信息

通讯作者:
李平

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出版历程
- 收稿日期: 2001-04-11
- 修回日期: 2001-08-31
- 发布日期: 2002-03-05

Dynamic Response of Polycrystalline Alumina under Shock Loading

1.
Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621900, China;
2.
Beijing Institute of Technology, Beijing 100081, China;
3.
Institute of Physics, Southwest Jiaotong University, Chengdu 610031, China

More Information

Corresponding author: LI Ping

摘要

摘要: 通过平面飞片碰撞实验，研究了质量分数为90%的Al2O3陶瓷在0～11.0 GPa的动态响应行为，给出了该材料的Hugoniot弹性极限（HEL）、动态屈服强度、高压声速和Hugoniot曲线。结果表明：当冲击应力在HEL11.0 GPa的范围内，Al2O3陶瓷的塑性区压缩特性表现出较明显的弥散行为；在远低于HEL的应力区，Al2O3陶瓷已表现出明显的压缩损伤效应，即出现所谓的破坏波效应。
- Al2O3陶瓷 /
- 动态响应 /
- 弥散
Abstract: The dynamic responses of polycrystalline alumina under plate impact were studied in the pressure range of 0～11.0 GPa experimentally using VISAR and in-material maganin gauges. The Hugoniot-elastic limit (HEL), compressive yield strength (Yc), Hugoniot sound speed and Hugoniot curve were obtained. Both free surface velocity profiles and Hugoniot curves indicate the dispersion of the permanent deformation wave for this material in the pressure range.
- polycrystalline alumina /
- dynamic response /
- dispersion

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参考文献(17)

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