Dynamic Failure of Shock-Loaded Glass

Chin. Phys. Lett.

1997, Vol. 14

Issue (7): 538-541 DOI:

Original Articles

Dynamic Failure of Shock-Loaded Glass

HE Hong-liang;JIN Xiao-gang;JING Fu-qian;G. I. Kanel¹

Laboratory for Shock Wave and Detonation Physics Research, Southwest Institute of Fluid Physics, Chengdu 610003 ¹Institute for High Temperatures, Russian Academy of Sciences, Moscow 127412, Russia Federation

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HE Hong-liang, JIN Xiao-gang, JING Fu-qian et al 1997 Chin. Phys. Lett. 14 538-541

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Abstract Failure wave generations on both impacted surface and internal surface inside the sample have been observed for K9 glass under planar shock wave loading, which demonstrates that formation of failure wave is a process related to the surface microcracks nuclei developing. Based on these observations, a hypothesis is suggested that the large local strains resulting from the rearrangement of SiO₄ tetrahedral within the permanent densification region behind the shock wave front and then strains releasing due to the surface microcracks developing could be responsible for the failure wave generation.

Keywords: 62.50.+p

Published: 01 July 1997

PACS:

62.50.+p

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1997/V14/I7/0538

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