The Dynamic Fracture Properties of Crack Rocks

Wang Lin; Yu Yalun

doi:10.13374/j.issn1001-053x.1994.02.001

Volume 16 Issue 2

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Wang Lin, Yu Yalun. The Dynamic Fracture Properties of Crack Rocks[J]. Chinese Journal of Engineering, 1994, 16(2): 101-105. doi: 10.13374/j.issn1001-053x.1994.02.001

Citation:

Wang Lin, Yu Yalun. The Dynamic Fracture Properties of Crack Rocks[J]. Chinese Journal of Engineering, 1994, 16(2): 101-105. doi: 10.13374/j.issn1001-053x.1994.02.001

Wang Lin, Yu Yalun. The Dynamic Fracture Properties of Crack Rocks[J]. Chinese Journal of Engineering, 1994, 16(2): 101-105. doi: 10.13374/j.issn1001-053x.1994.02.001

Citation:

Wang Lin, Yu Yalun. The Dynamic Fracture Properties of Crack Rocks[J]. Chinese Journal of Engineering, 1994, 16(2): 101-105. doi: 10.13374/j.issn1001-053x.1994.02.001

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The Dynamic Fracture Properties of Crack Rocks

doi: 10.13374/j.issn1001-053x.1994.02.001

Wang Lin,
Yu Yalun

Department of Mining and Mineral Engineering, USTB, Beijing. 100083, PRC

Received Date: 1993-03-02
Available Online: 2021-11-13

Abstract

Abstract

Using high speed impacting SHPB apparatus, test rock and ore of four crack types. Under the high speed impect, measure and produce the following:the curves of stress wave, the curves of strain vs time, stress vs time, stress vs strain, stress vs strain vs strain rate and stress vs strain vs the crack type. Compute the dynamic fracture strength and elastic modulus. Compare the dynamic fracture strength and elastic modulus. Compare the mechanical properties of the crack rock and ore in static and dynamic state. Obtain numerical relationship of crack and no crack rock and ore in different mechanical state.
- stress,
- strain,
- strain rate,
- crack dynamic fracture strength,