冲击载荷作用下脆性材料的失效波实验研究

兵工学报 ›› 2010, Vol. 31 ›› Issue (4): 486-490.

冲击载荷作用下脆性材料的失效波实验研究

张延耿, 段卓平, 张连生, 武海军

(北京理工大学爆炸科学与技术国家重点实验室，北京 100081)

收稿日期:2010-01-08 修回日期:2010-01-08 上线日期:2014-05-04
通讯作者: 张延耿 E-mail:zhangyangeng@bit.edu.cn
作者简介:张延耿(1981—)，博士研究生
基金资助:
国家自然科学基金项目(10872035)

Experimental Research on Failure Wave of Brittle Materials Under Shock Loading

ZHANG Yan-geng， DUAN Zhuo-ping， ZHANG Lian-sheng， WU Hai-jun

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

Received:2010-01-08 Revised:2010-01-08 Online:2014-05-04
Contact: ZHANG Yan-geng E-mail:zhangyangeng@bit.edu.cn

摘要/Abstract

摘要： 为研究玻璃、陶瓷等脆性材料在冲击加载条件下的失效波问题，在一维应变条件下，采用VI为研究玻璃、陶瓷等脆性材料在冲击加载条件下的失效波问题，在一维应变条件下，采用VISAR测量了不同冲击载荷作用下A95氧化铝陶瓷和soda lime玻璃试件背面的粒子速度时间历程。结果显示：采用相同的实验方法，soda lime玻璃试件背面粒子速度时间曲线出现了表征失效波现象的再压缩信号，与文献［148-1217-21］结果一致，而氧化铝陶瓷试件无此现象出现。这表明陶瓷与玻璃虽同为脆性材料，但是其破坏机制不尽相同，需要进一步开展研究。

关键词: 爆炸力学, 氧化铝陶瓷, soda lime玻璃, 失效波, 破坏

Abstract: In order to investigate the failure wave of brittle materials, such as glasses and ceramics, under dynamic compressive loading, the planar impact experiments of A95 alumina ceramic and soda lime glass were conducted under one-dimensional strain condition. The particle velocities on the rear surfaces of samples were acquired by using the VISAR technique. The results show that a re-compression signal on the temporal curve of soda lime glass which represents the occurrence of failure wave under certain pressure, which is agreement with many results in open literatures ［1,4,8-12,17-21］, but no re-compression signal exists on the temporal curve of alumina ceramic. This shows that the damage or fracture mechanisms of glasses and ceramics under shock loading may be different, which need more research in the future.

Key words: explosion mechanics, alumina ceramic, soda lime glass, failure wave, fracture mechanism

中图分类号:

O347.4

张延耿, 段卓平, 张连生, 武海军. 冲击载荷作用下脆性材料的失效波实验研究[J]. 兵工学报, 2010, 31(4): 486-490.

ZHANG Yan-geng， DUAN Zhuo-ping， ZHANG Lian-sheng， WU Hai-jun. Experimental Research on Failure Wave of Brittle Materials Under Shock Loading[J]. Acta Armamentarii, 2010, 31(4): 486-490.

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