Experimental investigation of the shearing resistance of SODA-Lime glass at pressures of 9 GPa and strain rates of 10^6 s^(-1)
Abstract
Pressure-Shear Plate Impact (PSPI) experiments were conducted to measure the high-rate shearing resistance of soda-lime glass at pressures of 9 GPa and at shearing rates of approximately 10^6 s^(−1). Samples of soda lime glass, 5 µm thick, were sandwiched between pure tungsten carbide (WC) plates and impacted by pure WC flyers. Impacting plates were inclined to the direction of approach by an angle of 18°. Normal stress and shearing resistance of the sample were calculated from measured free surface velocities using 1D elastic wave theory. The experimental results show that, at a pressure of 9GPa, the shear stress increases almost linearly up to 1 GPa and then falls quickly to approximately 0.3 GPa — after which it decreases slowly to approximately 0.17 GPa. Comparisons with results of previous experiments on nominally identical samples, impacted to generate lower peak pressures, showed the peak shearing resistance to be much higher at higher pressures; however, the sharp fall in shearing resistance occurs at comparable shear strains (1.5-2).
Additional Information
© 2018 AIP Publishing LLC. Published Online: 03 July 2018. This research is supported by the Office of Naval Research: N00014-16-1-2839; Naval Materials Division; Dr. Roshdy Barsoum, Program Officer.Attached Files
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Additional details
- Alternative title
- Experimental investigation of the shearing resistance of SODA-Lime glass at pressures of 9 GPa and strain rates of 106s-1
- Eprint ID
- 87557
- Resolver ID
- CaltechAUTHORS:20180705-134213412
- Office of Naval Research (ONR)
- N00014-16-1-2839
- Created
-
2018-07-05Created from EPrint's datestamp field
- Updated
-
2021-11-15Created from EPrint's last_modified field
- Caltech groups
- GALCIT
- Series Name
- AIP Conference Proceedings
- Series Volume or Issue Number
- 1979