... Characterization orientation energy consumption brittle material crack propagation indenter different orientation fracture Harmonising Rock Engineering and the Environment Qian & Zhou (eds) © 2012 Taylor & Francis Group, London, ISBN 978-0-415-80444-8 The effect of pick orientation on rock...

... an, China; School of Mechanics and Civil Architecture, Northwest Polytechnic University, Xi an, China J.Z. Liu, X C.C. Lv, Z.D. Wang & E.L. Bai Engineering College, Air Force Engineering University, Xi an, China ABSTRACT: Constitutive model of rock-like brittle material, which is necessary for studying...

... criterion stress state brittle material coordinate system Strength Characterization strength tensile strength data polycrystalline material Gaziev experimental result compression multiaxial stress state Bieniawski strength surface experimental data triaxial Takahashi Strength...

...Shear fracture analysis for brittle materials Analyse de la fracture de cisaillement sur des materiaux fragiles Scherbruch-Analyse fOr brOchige Materialian S.J.JUNG, Department of Metallurgical & Mining Engineering, University of Idaho, Idaho, USA HAN-UK LIM, Department of Resources Engineering...

... ABSTRACT: The paper shows that all brittle material and rocks, irrespective of the body shape and its structure, feature a common intrinsic regularity of shear failure - formation of the tension cracks at the initial phase and the zones of compression and crushing in the principal stress...

... Cardboard strength fracture initiation Griffith diameter examination brittle material principal stress 0 propagation hydraulic fracturing Brazilian test specimen fracture propagation tensile strength plane end condition fracture contour stress distribution equation...

... bit selection strength prediction impingement expression drilling operation Weibull rock drilling erosive drilling indenter erosion steel shot Upstream Oil & Gas particle particle density brittle material fracture specific energy high velocity solid particle tensile...