Abstract

The Hugoniot elastic limit (HEL), the spall strength, the failure threshold, and the failure wave velocity in LK7 glass during shock compression are measured. The HEL estimated from the profiles of compression waves of various intensities is 7.1 ± 0.1 GPa. The spall strength exceeds 7 GPa during shock compression in the elastic range and remains high when passing through the HEL. Failure waves form in the stress range from 5.7 to 10.3 ± 0.5 GPa.

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