Research on Brittleness and its Definition of Mudstone

Jing Ping Wei; Zhi Hao Ding; Fan Chen

doi:10.4028/www.scientific.net/AMM.275-277.379

Paper Titles

Site Investigation of a Loess Slope for a Field Irrigation Test
p.359

Study on Boundary Depth and Critical Shear Wave Velocity of Saturated Loess Foundation Liquefaction in Different Regions
p.363

Numerical Simulation of Land Subsidence in Hangu-Tianjin
p.371

Analysis of Displacement and Deformation Caused by Underground Mining in one Coal Mine of China
p.375

Research on Brittleness and its Definition of Mudstone
p.379

Micro-Study of Soil’s Inherent Anisotropy with PFC Simulation
p.383

Experimental Research on Compression Characteristics of Compacted Loess
p.387

Fluid-Structure Interaction Modeling by ALE and SPH
p.393

Effect of β-Cyclodextrin on the Water Loss and Hardness of Frying Chestnut during Storage
p.398

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 275-277Research on Brittleness and its Definition of...

Research on Brittleness and its Definition of Mudstone

Abstract:

Abstract. Through the uniaxial compressive test, the mechanical parameters and the complete stress-strain curves were obtained, which presented a brittle failure of the mudstone samples of the No.2₁ coal seam in West Henan. Soft rock was regarded as no brittle in its failure usually, but in fact it was exactly. It showed that yield failure occurred in some areas and tension occurred inside the specimens because of the samples’ inhomogeneous deformation. The comprehensive decision method of mining surrounding rock’s brittleness was suggested: the brittleness index was more than 25; the strain of rock at failure was less than 3%, and there was brittle stress drop in the complete stress-strain curve.

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Periodical:

Applied Mechanics and Materials (Volumes 275-277)

Pages:

379-382

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.275-277.379

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Online since:

January 2013

Authors:

Jing Ping Wei, Zhi Hao Ding, Fan Chen

Keywords:

Brittleness, Brittleness Definition, Brittleness Index, Mudstone

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