陶瓷材料在压剪联合冲击加载下动态响应的实验研究

段卓平; 郁锐; 张连生; 黄风雷

doi:10.11858/gywlxb.2007.04.001

陶瓷材料在压剪联合冲击加载下动态响应的实验研究

doi: 10.11858/gywlxb.2007.04.001

北京理工大学爆炸科学与技术国家重点实验室，北京 100081

详细信息

通讯作者:
段卓平

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出版历程
- 收稿日期: 2006-12-30
- 修回日期: 2007-03-26
- 发布日期: 2007-12-05

Experimental Study on Shear Response of Alumina Ceramic under Combined Compression and Shear Loading

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

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Corresponding author: DUAN Zhuo-Ping

摘要

摘要: 应用57 mm压剪炮和双磁场IMPS粒子测试系统对95%的Al2O3陶瓷材料在压剪联合加载条件下的力学行为进行了实验研究，测量得到了材料内部压缩波（P波）、剪切波（S波）的加载、卸载和传播规律。对剪切波的衰减随载荷的变化进行了研究，初步得到95% Al2O3陶瓷材料在压剪联合载荷冲击下发生损伤的纵向应力阀值是4.86 GPa。
- 固体力学 /
- 电磁粒子速度计 /
- 陶瓷 /
- 压缩波 /
- 剪切波 /
- 衰减
Abstract: The pressure-shear plate impact experiments have been performed on 95% Al2O3 ceramic using 57 mm diameter compressed gas gun. The high-pressure gases drove the ceramic flyer to impact the oblique target to produce pressure-shear loading, and the particle velocity is traced by embedded electromagnetic velocity gauge. The inelastic behavior and shear wave propagation of ceramics under combined compression and shear loading have been probed in ceramic. The lateral particle velocities show an attenuation of shear waves with increasing of impact load. From the experiments, we found that when the compression stress reached about 4.86 GPa, 95% Al2O3 ceramic started to produce little amount of cracks and holes. The shear waves also began to attenuate.
- solid dynamics /
- electromagnetic velocity gauge /
- ceramic /
- compress wave /
- shear wave /
- attenuation

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参考文献(11)

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