| 冲击载荷下氧化铝陶瓷的动态响应实验研究 |
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| 引用本文： | 郑志嘉,段卓平,张连生,欧卓成,黄风雷.冲击载荷下氧化铝陶瓷的动态响应实验研究[J].北京理工大学学报,2015,35(8):792-795. |
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| 作者姓名： | 郑志嘉 段卓平 张连生 欧卓成 黄风雷 |
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| 作者单位： | 北京理工大学爆炸科学与技术国家重点实验室,北京,100081;北京理工大学爆炸科学与技术国家重点实验室,北京,100081;北京理工大学爆炸科学与技术国家重点实验室,北京,100081;北京理工大学爆炸科学与技术国家重点实验室,北京,100081;北京理工大学爆炸科学与技术国家重点实验室,北京,100081 |
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| 摘 要： | 为研究冲击载荷氧化铝陶瓷的动态响应特性,采用DISAR测试系统,测得了氧化铝陶瓷试件的自由面粒子速度时程曲线. 实验结果表明,在不同的实验条件下,粒子速度时程曲线的上升前沿出现了不同程度的趋缓现象,这说明陶瓷材料在冲击载荷作用下表现出了 "类塑性"的特征. 同时,实验中陶瓷材料的Hugoniot弹性极限存在着随试件厚度增加而衰减的变化规律,这在一定程度上反映了陶瓷材料的动态响应特性.
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| 关 键 词： | 脆性材料 氧化铝陶瓷 DISAR 冲击压缩 |
| 收稿时间： | 2013/12/4 0:00:00 |
Experimental Research on the Dynamic Response of the Al2O3 Ceramic at Impact Loading |
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| ZHENG Zhi-ji,DUAN Zhuo-ping,ZHANG Lian-sheng,OU Zhuo-cheng and HUANG Feng-lei.Experimental Research on the Dynamic Response of the Al2O3 Ceramic at Impact Loading[J].Journal of Beijing Institute of Technology(Natural Science Edition),2015,35(8):792-795. |
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| Authors: | ZHENG Zhi-ji DUAN Zhuo-ping ZHANG Lian-sheng OU Zhuo-cheng and HUANG Feng-lei |
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| Institution: | State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | The particle velocities in the free surface of the Al2O3 ceramic specimen were recorded by DISRA system. The experimental results show that the leading edges of the particle velocity curves are getting flat to varying degrees under the different experiment conditions, which demonstrate the characteristic of the plastic-like behavior under impact loading. Meanwhile, in the experiment, the Hugoniot elastic limit of the ceramic attenuates with the thickness of the specimen, which reflects the features to some degree on the dynamic response of the Al2O3 ceramic. |
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| Keywords: | brittle material Al2O3 ceramic DISAR shock compression |
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