Energy-Based Brittleness Index and Acoustic Emission Characteristics of Anisotropic Coal Under Triaxial Stress Condition

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Hardness, Toughness, and Brittleness: An Indentation Analysis

Brian R. Lawn, D. B. Marshall · Journal of the American Ceramic Society · 1979 · 792 citations

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Brittleness determination of rocks by different methods

V.J. Hucka, Barun K. Das · International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts · 1974 · 659 citations

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Energy analysis and criteria for structural failure of rocks

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