Results 11 to 20 of about 27,970 (292)

Butane dihedral angle dynamics in water is dominated by internal friction [PDF]

open access: yesProceedings of the National Academy of Sciences, 2018
Significance The interpretation of rates of reactions that take place in a solvent is complicated because of the entanglement of free-energy and history-dependent friction effects. In this context, the dihedral dynamics of butane has played a paradigmatic role since it is simple yet relevant for conformational transitions in polymers ...
Daldrop, Jan O.   +3 more
core   +6 more sources

Experimental Determination of Cohesion and Internal Friction Angle on Conventional Concretes

open access: yesACI Materials Journal, 2017
Various failure criterions have been used for the nonlinear analysis of concrete and reinforced concrete structures. To get more accurate results from the analyses, the selected failure criterion must be appropriate with the characteristics of problem and the assumptions made in the criterion should comply with the characteristics of problem.
Pul, Selim   +4 more
core   +4 more sources

Calculating the cohesion and internal friction angle of volcanic rocks and rock masses

open access: yesVolcanica, 2021
Rock failure criteria are key input parameters for models designed to better understand the stability of volcanic rock masses. Cohesion and friction angle are the two defining material variables for the Mohr-Coulomb failure criterion. Although these can be determined from laboratory deformation experiments, they are rarely reported.
Villeneuve, Marlène, Heap, Michael
openaire   +5 more sources

Calculation Method of the Finite Soil Pressure for a New Foundation Pit Adjacent to an Existing Subway Station

open access: yesApplied Sciences, 2023
The study aimed at the simple prediction problem of finite soil pressure for a new foundation pit adjacent to an existing subway station. Failure modes of the finite soil were proposed.
Zhenbo Zhang   +4 more
doaj   +1 more source

Numerical simulation of submarine pipeline penetration in sandy seabed

open access: yesJournal of Hebei University of Science and Technology, 2022
In order to predict the penetration depth of submarine pipeline on sandy seabed,a coupled Eulerian-Lagranginan finite element model of submarine pipeline penetration on sandy seabed was established under ABAQUS to simulate the process of submarine ...
Xiaoming ZHENG   +4 more
doaj   +1 more source

Calculation and analysis of earth pressure under limited displacement considering influences of internal friction angle

open access: yesYantu gongcheng xuebao, 2021
Taking the retaining wall in cohesive and cohesionless backfills as the research object, based on the existing results, a formula for calculating the earth pressure under the limited displacement considering the influences of internal friction angle is ...
ZHANG Le 1, DANG Fa-ning 1, WANG Xu 1, DING Jiu-long 1, GAO Jun 1
doaj   +1 more source

Three-dimensional stability limit analysis of cracked loess slopes

open access: yesRock and Soil Mechanics, 2022
The development of vertical cracks in loess slopes often affects slope stability. Compared with the plane strain mechanism, the slope stability analysis under the three-dimensional (3D) failure mechanism is closer to the actual slope instability.
ZHU Xue-liang   +4 more
doaj   +1 more source

Numerical simulation of the effect of weak shale bedding on fracture propagation through strata

open access: yesMeikuang Anquan, 2023
Bedding strength is one of the key factors affecting the propagation of hydraulic fractures through beddings, which is mainly determined by cohesion, internal friction angle and tensile strength. However, there are few researches on this.
BAI Yuesong, HU Yaoqing, HE Rui, LIAO Xingchuan, TAN Jin, YI Liangping, HUANG Liuke, CAO Aiwu, LI Jie
doaj   +1 more source

Evaluating the Effect of Soil Particle Characterization on Internal Friction Angle [PDF]

open access: yesAmerican Journal of Engineering and Applied Sciences, 2021
One of the critical design parameters used in evaluating soil structure is the friction angle, derived from Mohr's Circle failure criterion. The soil friction angle is an engineering parameter estimated in the laboratory to quantify the soil shear strength in geotechnical applications. This paper indicates an experimental study investigating the impact
Arezou Rasti   +3 more
openaire   +1 more source

Upper Bound Finite Element Limit Analysis of Pullout Characteristics of Normal-Stressed Circular Anchor Plate

open access: yesGeofluids, 2022
In this paper, the pullout factor and failure mode of circular anchor plate at an inclined angle with the horizontal ground under the normal stress are studied with the method of the upper bound finite element limit analysis. The effects of soil cohesion,
Yibo Luo   +4 more
doaj   +1 more source

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