Results 1 to 10 of about 28 (28)

Non-coaxiality of sand under bi-directional shear loading [PDF]

open access: yesRoyal Society Open Science, 2018
This study aims to investigate the effect of consolidation shear stress magnitude on the shear behaviour and non-coaxiality of soils. In previous drained bi-directional simple shear test on Leighton Buzzard sand, it is showed that the level of non ...
Yao Li, Yunming Yang
doaj   +1 more source

Semi-implicit integration algorithm for non-coaxial model based on vertex theory and its application

open access: yesYantu gongcheng xuebao, 2023
A semi-implicit integration algorithm is presented for the non-coaxial model based on the yield vertex theory. In the stress updating considering the non-coaxial terms, the plastic flow direction is expressed explicitly.
CHEN Zhouquan 1, 2, 3, 4, CHEN Xiangsheng 1, 2, 3, 4, PANG Xiaochao 3, 5, SU Dong 1, 2, 3, 4, LIN Xingtao 1, 2, 3, 4
doaj   +1 more source

Experimental Study on the Anisotropy and Non-coaxiality of Frozen Standard Sand under Different Principal Stress Directions

open access: yesGeofluids, 2022
Owing to the limitations of the apparatus, the influence of its principal stress direction on the anisotropic behavior and non-coaxiality of frozen soil has not been fully considered in previous studies.
Dun Chen   +7 more
doaj   +1 more source

Constitutive modeling of plastic effects of cyclic principal stress rotation of natural soft clay

open access: yesYantu gongcheng xuebao, 2022
A constitutive model which can reflect the plastic effects of the principal stress rotation of natural soft clay is proposed based on the anisotropic bounding surface model.
DU Zi-bo 1, QIAN Jian-gu 2, 3, GUO Yuan-cheng 1, HUANG Mao-song 2, 3
doaj   +1 more source

Non-coaxial sand model based on improved vertex theory and its application

open access: yesYantu gongcheng xuebao, 2021
Although the non-coaxial models based on the traditional vertex theory can capture the non-coaxial behavior of sand, they contain some theoretical defects.
WANG Xing 1, 2, KONG Liang 1, 2, LI Xue-feng 3
doaj   +1 more source

Discrete Element Simple Shear Test Considering Particle Shape

open access: yesApplied Sciences, 2023
The particle shape has significant effects on the slip and rotation of particles in the shear of geomaterials, which is an important factor in the deformation and strength of geomaterials.
Houying Zhu   +3 more
doaj   +1 more source

Three-dimensional non-coaxial constitutive model for sand and its application in bearing capacity of foundation

open access: yesYantu gongcheng xuebao, 2020
Due to the coaxial assumption that the direction of plastic strain rate is the same as that of stress, the non-coaxial behavior of sand under non-proportional loading conditions can not be captured by the conventional elastic-plastic model. In this study,
WANG Xing 1, KONG Liang 2, LI Xue-feng 3
doaj   +1 more source

Response of granular material under combined principal stress value and orientation change in 3D space

open access: yesOpen Geomechanics, 2022
Laboratory tests on soil adopts simplified stress paths compared to real world counterparts due to mechanical limitations. This study investigates the deformation of granular material under combined principal stress value and orientation change in full ...
Zhan He   +3 more
doaj   +1 more source

Effects of non-coaxiality and soil anisotropy on tunneling-induced subsurface settlements

open access: yesYantu gongcheng xuebao, 2018
Nowadays, constitutive models for soils used for numerical modelling of tunnelling are normally restricted to the assumption of soil strength isotropy and coaxiality.
YUAN Ran 1,2, YANG Wen-bo 1, YU Hai-Sui 2, ZHOU Bo 2,3
doaj   +1 more source

A Method for Identification of Non-Coaxiality in Engine Shaft Lines of a Selected Type of Naval Ships

open access: yesPolish Maritime Research, 2015
A correctly designed machine is characteristic of low vibration values. However wear processes occur during its operation. They are accompanied by a lack of balance of its rotating parts and elements, which results in non-coaxiality of shafts.
Grządziela Andrzej   +3 more
doaj   +1 more source

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