Results 31 to 40 of about 330,923 (308)

Research on the Accumulated Plastic Strain of Expansive Soil under Subway Loading

open access: yesApplied Sciences, 2023
Expansive soil near Hefei Xinqiao International Airport was selected as the research focus. The effects of different loading modes on the dynamic strain of the saturated remodeled expansive soil was investigated by indoor dynamic triaxial tests and the ...
Lei Zhu   +3 more
doaj   +1 more source

Effects of the Change of the Maximum Stress and the Stress Ratio on the Cyclic Creep Behaviors

open access: yesBulletin of JSME, 1981
Cyclic creep behaviors of carbon steel are investigated by the true stress controlled low-cycle fatigue tests, stepwise or linearly increasing or decreasing maximum stress with a changing stress ratio. The constitutive equation proposed previously by the authors is found to be applicable to represent the strain accumulations in both increasing and ...
Fusahito YOSHIDA   +2 more
openaire   +2 more sources

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

open access: yes, 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   +2 more
core   +8 more sources

Road Performance and Water-Softening Characteristics of Stabilized Soil under Cyclic Loading

open access: yesZhongwai Gonglu
To effectively deal with waste soil and reduce environmental pollution, this paper took a road engineering project in Shaoxing as the research object and conducted a cyclic triaxial incremental loading test on the undisturbed lime soil under undrained ...
HU Hong   +4 more
doaj   +1 more source

Experimental Study on the Effects of Initial Shear Stress and Vibration Frequency on Dynamic Strength of Saturated Sands

open access: yesAdvances in Materials Science and Engineering, 2019
The cyclic triaxial system is used to investigate the effects of confining pressure, initial shear stress, cyclic stress ratio, and vibration frequency on the dynamic strength characteristics of saturated sand in the Wenchuan area. Results show that when
Jian Zhang, Jiuting Cao, Sijie Huang
doaj   +1 more source

Experimental study on mechanical properties of Xiaojihan coal samples under plastic flow

open access: yesMeikuang Anquan, 2021
In order to study the plastic flow properties and hysteresis characteristics of Xiaojihan main water-bearing coal seam under the influence of mining, the axial cyclic loading and unloading tests under different confining pressures were carried out. When
YOU Wenqiang, GUO Jingna, WANG Guanghui
doaj   +1 more source

New methodology for calculating damage variables evolution in Plastic Damage Model for RC structures [PDF]

open access: yes, 2017
The behavior of reinforced concrete (RC) structures under severe demands, as strong ground motions, is highly complex; this is mainly due to joint operation of concrete and steel, with several coupled failure modes.
Alfarah, Bashar   +2 more
core   +2 more sources

Mechanical Behavior Evolution and Damage Characterization of Coal under Different Cyclic Engineering Loading

open access: yesGeofluids, 2020
The cyclic loading causes the strength change of porous rocks, which can be frequently encountered in underground coal mining. In order to quantify the cumulative damage of porous coal, multilevel uniaxial cyclic compressive tests were carried out ...
Huajun Wang, Jian Li
doaj   +1 more source

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  

Effect of grain disorientation on early fatigue crack propagation in face-centred-cubic polycristals: A three-dimensional dislocation dynamics investigation [PDF]

open access: yes, 2013
Three-dimensional dislocation dynamics simulations are used to study micro-crack interaction with the first micro-structural barrier in face-centred cubic bi-crystals loaded in high cycle fatigue conditions. In the examined configuration, we assumed that
depres, christophe   +3 more
core   +5 more sources

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