Results 61 to 70 of about 181,167 (285)

Experimental study on deformation behaviors of saturated soft clay under intermittent cyclic loading with various drained conditions

Yantu gongcheng xuebao
In the previous studies, the cyclic triaxial tests under intermittent cyclic loading are used to study the deformation characteristics of soft clay under traffic loads. Both confining pressure and deviator stress vary cyclically in the stress field under
HUANG Juehao 1, 2, XU Linfeng 3, 1, LU Yuan 5, YAN Wenlong 4, 1, CHEN Jian 1, 2, FU Xiaodong 1, 2
doaj   +1 more source

Cyclic Loading and Fabric Evolution in Sand: A Constitutive Investigation [PDF]

, 2015
An anisotropic plasticity model is proposed to describe the effect of fabric and fabric evolution on the cyclic behaviour of sand within the framework of anisotropic critical state theory.
Gao, Zhiwei, Zhao, Jidong
core  

Interpreting Measurements of Small Strain Elastic Shear Modulus under Unsaturated Conditions [PDF]

, 2016
Bender element testing of unsaturated isotropically compacted speswhite kaolin samples was used to investigate the variation of small strain elastic shear modulus G under unsaturated conditions. Testing was performed in a suction-controlled triaxial cell
Hasan, Ahmed Mohammed, Wheeler, Simon
core   +2 more sources

New opportunities for bioscaffold‐enabled spinal cord injury repair

BMEMat, EarlyView.
Schematic illustration of bioscaffolds for spinal cord injury repair. We summarize the effects of bioscaffold properties on SCI repair, highlight different types of bioscaffolds, various fabrication strategies, and in vivo transformations for the clinical development of SCI‐repairing bioscaffolds.
Xiaoqing Qi, Yicheng Fu, Zhaoliang Su, Li Li, Subrata Chakrabarti, Peng Li, Yilun Wu, Fang Liu, Teng Gao, Zhifeng Dong, Lei Liu, Pei Cao   +11 more
wiley   +1 more source

A constitutive model for unsaturated cemented soils under cyclic loading [PDF]

, 2008
On the basis of plastic bounding surface model, the damage theory for structured soils and unsaturated soil mechanics, an elastoplastic model for unsaturated loessic soils under cyclic loading has been elaborated.
Alonso, Baudet, C. Yang, Carol, Chai, Cui, Cui, Dafalias, Delage, Grabowska-Olszewska, J.M. Pereira, Leroueil, M.S. Huang, Osipov, Pastor, Pereira, Sharma, Sharma, van Genuchten, Wheeler, Wheeler, Y.J. Cui, Zienkiewicz   +22 more
core   +5 more sources

Effect of confining pressure on fracture characteristics and mineralogical behavior of tight sandstone specimens after hydraulic fracturing

Deep Underground Science and Engineering, EarlyView.
Hydraulic fracturing in tight sandstone and fracture propagation characteristics using backscattered electron‐scanning electron microscope (BSE‐SEM) images. Abstract This study focuses on hydraulic fracturing experiments conducted under triaxial conditions on tight sandstone specimens from Shivpuri district, Madhya Pradesh, India.
Pankaj Rawat, Narendra Kumar Samadhiya
wiley   +1 more source

Experimental study on coupling effects of cyclic confining pressure and intermittent cyclic loading on deformation behavior of saturated soft clay

Yantu gongcheng xuebao
The deformation characteristics of soft clay under intermittent cyclic loading and cyclic confining pressure are studied by conducting two types of cyclic triaxial tests, i.e., continuous cyclic loading and intermittent cyclic loading triaxial tests, and
HUANG Juehao 1, 2, QIU Yuefeng 3, WU Jiaming 4, LI Yinan 5, CHEN Jian 1, 2, FU Xiaodong 1, 2
doaj   +1 more source

Behaviour of saturated sand under cyclic loading: Model approach with experimental validation [PDF]

E3S Web of Conferences
This study presents a comparison between triaxial test results and constitutive model simulations for saturated sand subjected to a wide range of stress, relative density and both monotonic and cyclic loadings.
Velayudham Jotheeshwar, Airey David, Mohammadi Amirabbas, Ghorbhani Javad   +3 more
doaj   +1 more source

Triaxial compression tests on a crushable sand in dry and wet conditions [PDF]

, 2015
A calcareous sand from the Persian Gulf is subjected to a series of dry and fully drained saturated triaxial shear tests. The samples are prepared at relative densities of 65% and either left dry or saturated. They are consolidated to confining pressures
Haegeman, Wim, Van Impe, PO, Wils, L
core   +1 more source

Macroscopic model with anisotropy based on micro-macro informations [PDF]

, 2014
Physical experiments can characterize the elastic response of granular materials in terms of macroscopic state-variables, namely volume (packing) fraction and stress, while the microstructure is not accessible and thus neglected.
Kumar, Nishant, Luding, Stefan, Magnanimo, Vanessa   +2 more
core   +5 more sources