Results 81 to 90 of about 235,469 (330)

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

open access: yes, 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  

The plastic limit of clays [PDF]

open access: yes, 2013
The plastic limit of soils was first described by Atterberg in 1911. The thread-rolling test was standardised at the US Public Roads Bureau in the 1920s and 1930s, and has subsequently become one of the standard tests of soil mechanics.
Bolton, Malcolm D.   +2 more
core   +2 more sources

Experimental study on dynamic behavior analysis of coal and its acoustic emission response characteristics under impact failure

open access: yesDeep Underground Science and Engineering, EarlyView.
Based on acoustic emission response characteristics, it can be more accurate to identify the damage evolution process of coal under the combined dynamic and static loads, reveal the moment corresponding to coal damage, and identify the characteristics of coal failure. The research results are conducive to the further use of acoustic emission monitoring
Wei Zhang   +10 more
wiley   +1 more source

Microscopic time‐dependent mechanical behavior of shale derived from nanoindentation

open access: yesDeep Underground Science and Engineering, EarlyView.
This study conducted grid nanoindentation creep tests to systematically analyze the microscopic creep behaviors of shale. Based on the analysis of creep strain rate sensitivity, the primary mechanism of microscopic creep in shale was found to be the extension and closure of microcracks.
Cunbao Li   +4 more
wiley   +1 more source

Stiffness of clays and silts: Modeling considerations [PDF]

open access: yes, 2014
A large database has recently been published that details the development of new empirical expressions for the stiffness reduction with strain of clays and silts.
Bolton, Malcolm, Vardanega, Paul J
core   +2 more sources

Experimental and constitutive modeling investigations on marble in Jinping Underground Laboratory

open access: yesDeep Underground Science and Engineering, EarlyView.
The objective of this study is to reveal the underlying mechanisms behind the brittle‐ductile transition of the marble through a combination of experimental research and constitutive modeling. A series of triaxial compression and triaxial cyclic loading tests are conducted.
Susheng Wang   +3 more
wiley   +1 more source

Anisotropically Consolidated Undrained Compression Test on Residual Soil

open access: yesE3S Web of Conferences, 2018
In Malaysia, the shear strength and corresponding deformation characteristics of residual soils are normally investigated by isotropically consolidated undrained (CIU) triaxial test.
Lim Jun Xian   +3 more
doaj   +1 more source

Effects of granular shape on shear modulus and damping ratio of gravel

open access: yesEarth Sciences Research Journal, 2019
The effects of the consolidation ratio, effective confining pressure, gravel content, and granule breakage on the shear modulus and damping ratio of gravel have been extensively researched in recent years.
Kai Cui, Hang Sheng
doaj   +1 more source

Relationship between the matric suction and the shear strength in unsaturated soil

open access: yesCase Studies in Construction Materials, 2020
To understand the shear strength properties for unsaturated soil with different matric suction values, a modified triaxial test device was used. The matric suction is considered an important contributor to unsaturated shear strength properties.
Idris A. Abd   +2 more
doaj   +1 more source

Simulation of Triaxial Tests for Unsaturated Soils under a Tension–Shear State by the Discrete Element Method [PDF]

open access: gold, 2022
Guoqing Cai   +8 more
openalex   +1 more source

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