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The Response of Rock Materials to One-dimensional Shock Loading - AusIMM
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The Response of Rock Materials to One-dimensional Shock Loading

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Author Q B Zhang and J Zhao
ID P201507074

Description

The shock behaviour of a material represents its response to very high strain rate loading at pressures associated with those generated by explosive and blasting loadings. Three sets of shock wave experiments have been conducted to determine shock Hugoniot behaviour, spall tensile strength and shear strength using a plate impact facility. Embedded manganin stress gauges (ie longitudinal and lateral gauges) and high-speed velocimetry using heterodyne techniques were used for the measurements of stresses, shock velocity and free surface velocity. The gabbro exhibited classic linear Hugoniot equations of state in the US-up (ie shock velocity-particle velocity) plane; while for marble a polymer-like non-linear response was observed. The detailed experimental procedures used to make these measurements are to a great extent standard methods when determining mechanical properties and deformation fields at high strain rate.

CITATION:

Zhang, Q B and Zhao, J, 2015. The response of rock materials to one-dimensional shock loading, in Proceedings 11th International Symposium on Rock Fragmentation by Blasting, pp 665–672 (The Australasian Institute of Mining and Metallurgy: Melbourne).