Results 11 to 20 of about 12,735,996 (314)

Strain effects on monolayer MoSi2N4: Ideal strength and failure mechanism [PDF]

open access: yesPhysica. E, Low-Dimensional systems and nanostructures, 2021
Recently, two-dimensional monolayer MoSi2N4 with hexagonal structure was successfully synthesized in experiment (Hong et al. 2020 Science 369, 670). The fabricated monolayer MoSi2N4 is predicted to have excellent mechanical properties.
Qingfang Li   +3 more
semanticscholar   +1 more source

Recognition of the Typical Distress in Concrete Pavement Based on GPR and 1D-CNN

open access: yesRemote Sensing, 2021
Ground-penetrating radar (GPR) signal recognition depends much on manual feature extraction. However, the complexity of radar detection signals leads to conventional intelligent algorithms lacking sufficient flexibility in concrete pavement detection ...
Juncai Xu, Jingkui Zhang, Weigang Sun
doaj   +1 more source

Experimental study on internal erosion behaviors under fluctuating hydraulic condition using transparent soil

open access: yesRock and Soil Mechanics, 2022
Internal erosion is a phenomenon that fine particles migrate through the channels within coarse matrix under seepage flow. Previous studies mainly focused on the internal erosion under steady hydraulic gradient, while the studies on the behavior and ...
DENG Ze-zhi, JI En-yue, WANG Gang
doaj   +1 more source

Physical model test and numerical simulation on the failure mechanism of the roadway in layered soft rocks

open access: yesInternational Journal of Mining Science and Technology, 2021
To explore the failure mechanism of roadway in layered soft rocks, a physical model with the physically finite elemental slab assemblage (PFESA) method was established.
Xiaoming Sun   +5 more
semanticscholar   +1 more source

Research on a Critical Hydraulic Gradient of Piping in Noncohesive Soils

open access: yesAdvances in Civil Engineering, 2021
The critical hydraulic gradient of cohesive soil is an important condition for judging soil piping. For force analysis of movable particles in pore channels of soil, this study proposes to consider the influence of surrounding particles on the drag force
Can-Hong Zhang, En-Yue Ji, Bao-Tian Wang
doaj   +1 more source

Experimental study on the dynamic behavior of rubber concrete under compression considering earthquake magnitude strain rate

open access: yesJournal of Civil Engineering and Management, 2020
To examine the compressive dynamic performance of rubber concrete, a uniaxial compression experimental study on rubber concrete was carried out using a hydraulic servo based on five different rubber substitution rates under eight different earthquake ...
Furong Li   +4 more
doaj   +1 more source

Yarn on yarn abrasion failure mechanism of ultrahigh molecular weight polyethylene fiber

open access: yes, 2021
Yarns of fiber assemblies such as ropes would abrade with each other during repeated stretching or bending. The yarn on yarn abrasion failure is a main reason for the final assembly failure as the result of the relative movement to each other. To explore
Chunfu Sheng   +9 more
semanticscholar   +1 more source

SBG model for particle breakage of rockfills based on fractal gradation equation

open access: yesYantu gongcheng xuebao, 2022
Accurately predicting the particle breakage rate and the corresponding gradation changes of rockfills in shearing process is beneficial to revealing their characteristics such as strength, penetration and deformation under complex stress conditions ...
DING Lin-nan 1, 2, LI Guo-ying 1, 2
doaj   +1 more source

Measuring method for membrane penetration capacity of coarse-grained soil in triaxial tests

open access: yesYantu gongcheng xuebao, 2021
The membrane penetration effects displayed in the coarse-grained soil tests will distort the measurement of volume deformation of samples, thereby affecting the measuring accuracy of strength and deformation index.
XU Wei-wei 1, CHEN Sheng-shui 1, 2, FU Zhong-zhi 1, 2, JI En-yue 1, 2
doaj   +1 more source

Experimental study on microstructure and compressibility of iron ore tailings

open access: yesYantu gongcheng xuebao, 2020
A series of compression tests are conducted on iron ore tailings taken from Qingshan tailings impoundment to analyze the compression deformation behavior.
ZHANG Yi-jiang 1, CHEN Sheng-shui 1, 2, FU Zhong-zhi 1, 2
doaj   +1 more source

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