A method to calculate the dynamic compressive strength of rock with single specimen

Renshu Yang; Jun Chen; Chenglong Xiao; Shuaizhi Chen

doi:10.13465/j.cnki.jvs.2018.04.019

A method to calculate the dynamic compressive strength of rock with single specimen

Renshu Yang
, Jun Chen^*
, Chenglong Xiao
, Shuaizhi Chen

^*Corresponding author for this work

China University of Mining & Technology, Beijing

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The dynamic failure mechanism of rock in intermediate and low strain-rate was analyzed from three aspects-failure modes, energy absorption, and mechanical parameters, A new method to calculate the dynamic compressive strength of rock was presented. A pseudo-static method combined with the principle of virtual work was used to build the formula. The work done by external force to rock was considered more than the internal energy loss, and the damage happened because of the rock cannot endure the external load. Therefore, the dynamic compressive strength σ_cd is equal to the sum of the static compressive strength σ_c' and the increased strength by the strain-rate effect. Then the calculated value of the dynamic compressive strength was compared with the experimental results in literatures.

Original language	English
Pages (from-to)	123-127
Number of pages	5
Journal	Zhendong yu Chongji/Journal of Vibration and Shock
Volume	37
Issue number	4
DOIs	https://doi.org/10.13465/j.cnki.jvs.2018.04.019
Publication status	Published - 28 Feb 2018
Externally published	Yes

Keywords

Dynamic compression strength
Failure mechanism
Pseudo-static method
SHPB

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10.13465/j.cnki.jvs.2018.04.019

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title = "A method to calculate the dynamic compressive strength of rock with single specimen",

abstract = "The dynamic failure mechanism of rock in intermediate and low strain-rate was analyzed from three aspects-failure modes, energy absorption, and mechanical parameters, A new method to calculate the dynamic compressive strength of rock was presented. A pseudo-static method combined with the principle of virtual work was used to build the formula. The work done by external force to rock was considered more than the internal energy loss, and the damage happened because of the rock cannot endure the external load. Therefore, the dynamic compressive strength σcd is equal to the sum of the static compressive strength σc' and the increased strength by the strain-rate effect. Then the calculated value of the dynamic compressive strength was compared with the experimental results in literatures.",

keywords = "Dynamic compression strength, Failure mechanism, Pseudo-static method, SHPB",

author = "Renshu Yang and Jun Chen and Chenglong Xiao and Shuaizhi Chen",

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T1 - A method to calculate the dynamic compressive strength of rock with single specimen

AU - Yang, Renshu

AU - Chen, Jun

AU - Xiao, Chenglong

AU - Chen, Shuaizhi

PY - 2018/2/28

Y1 - 2018/2/28

N2 - The dynamic failure mechanism of rock in intermediate and low strain-rate was analyzed from three aspects-failure modes, energy absorption, and mechanical parameters, A new method to calculate the dynamic compressive strength of rock was presented. A pseudo-static method combined with the principle of virtual work was used to build the formula. The work done by external force to rock was considered more than the internal energy loss, and the damage happened because of the rock cannot endure the external load. Therefore, the dynamic compressive strength σcd is equal to the sum of the static compressive strength σc' and the increased strength by the strain-rate effect. Then the calculated value of the dynamic compressive strength was compared with the experimental results in literatures.

AB - The dynamic failure mechanism of rock in intermediate and low strain-rate was analyzed from three aspects-failure modes, energy absorption, and mechanical parameters, A new method to calculate the dynamic compressive strength of rock was presented. A pseudo-static method combined with the principle of virtual work was used to build the formula. The work done by external force to rock was considered more than the internal energy loss, and the damage happened because of the rock cannot endure the external load. Therefore, the dynamic compressive strength σcd is equal to the sum of the static compressive strength σc' and the increased strength by the strain-rate effect. Then the calculated value of the dynamic compressive strength was compared with the experimental results in literatures.

KW - Dynamic compression strength

KW - Failure mechanism

KW - Pseudo-static method

KW - SHPB

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DO - 10.13465/j.cnki.jvs.2018.04.019

M3 - Article

AN - SCOPUS:85046375023

SN - 1000-3835

VL - 37

SP - 123

EP - 127

JO - Zhendong yu Chongji/Journal of Vibration and Shock

JF - Zhendong yu Chongji/Journal of Vibration and Shock

IS - 4

ER -

A method to calculate the dynamic compressive strength of rock with single specimen

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Keywords

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