Results 11 to 20 of about 12,995 (225)

Mohr–Coulomb Failure Criterion [PDF]

open access: yesRock Mechanics and Rock Engineering, 2012
List of Symbols a (m 1)/(m ? 1) b 1/(m ? 1) c Cohesion C0 Uniaxial compressive strength m (1 ? sin /)/(1 sin /) S0 Inherent shear strength (cohesion) T Uniaxial tensile strength T0 Theoretical MC uniaxial tensile strength / Angle of internal friction l = tan / Coefficient of internal friction r Normal stress on plane s Shear stress on plane r1, r2, r3 ...
Labuz, J., Zang, A.
openaire   +4 more sources

Investigation of the Control Effect of Single Structural Plane on Stability of Rock Mass Based on Barton-Bandis Criterion

open access: yesLithosphere, 2022
The structural plane plays a decisive role in the development processes of rockburst. In this paper, Barton-Bandis criterion of structural plane and its conversion relationship with Mohr-Coulomb criterion are discussed in detail.
Jingyu Kang   +6 more
doaj   +1 more source

Finite element analysis of wellbore stability and optimum drilling direction and applying NYZA method for a safe mud weight window [PDF]

open access: yesAnalytical and Numerical Methods in Mining Engineering, 2022
Wellbore stability analysis, selecting the optimum drilling direction, and determining the safe and stable mud weight windows are among the major geo-mechanical challenges in the oil and gas industries.
محسن حیدری   +2 more
doaj   +1 more source

Axisymmetric adaptive lower bound finite element method based on Mohr-Coulomb yield criterion and second-order cone programming

open access: yesYantu gongcheng xuebao, 2023
The axisymmetric Mohr Coulomb yield surfaces have edges and corners in the three-dimensional stress space, which leads to difficulties in numerical calculation.
SUN Rui 1, ZHANG Jian 2, YANG Junsheng 3, YANG Feng 3
doaj   +1 more source

Slope stability analysis: Barodesy vs linear elastic – perfectly plastic models [PDF]

open access: yesE3S Web of Conferences, 2019
The results of slope stability analysis are not unique. Different factors of safety are obtained investigating the same slope. The differences result from different constitutive models including different failure surfaces. In this contribution, different
Tschuchnigg Franz   +2 more
doaj   +1 more source

A Three-Dimensional Elastoplastic Constitutive Model for Geomaterials

open access: yesApplied Sciences, 2023
The Mohr-Coulomb (M-C) failure criterion has been a popular choice for geotechnical analysis because of its simplicity and ease of use. The fact that the M-C criterion disregards the intermediate principal stress’s impact is a significant drawback.
Dongshuai Tian, Hong Zheng
doaj   +1 more source

Application of modified yield criteria for calculation of safe pressures on the subgrade soil [PDF]

open access: yesИнженерно-строительный журнал, 2013
The article deals with design the road constructions by ensuring the shear resistance of the subgrade soil and pavement layers made of weakly cohesive materials.
A.L. Kalinin
doaj   +1 more source

Empirical strength envelope for shale [PDF]

open access: yes, 2016
Effectively, strength envelope describes behavior of rock when subjected to common stresses in construction, i.e. compressive, triaxial and tensile stresses.
Abdullah, Rini Asnida   +2 more
core   +2 more sources

A Macroscopic Strength Criterion for Isotropic Metals Based on the Concept of Fracture Plane

open access: yesMetals, 2019
Although the linear Mohr−Coulomb criterion is frequently applied to predict the failure of brittle materials such as cast iron, it can be used for ductile metals too.
Jiefei Gu, Puhui Chen, Ke Li, Lei Su
doaj   +1 more source

Practical application of failure criteria in determining safe mud weight windows in drilling operations

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2014
Wellbore instability is reported frequently as one of the most significant incidents during drilling operations. Analysis of wellbore instability includes estimation of formation mechanical properties and the state of in situ stresses.
R. Gholami   +3 more
doaj   +1 more source

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