Results 41 to 50 of about 3,979 (211)

Energy dissipation of rock specimens under high strain rate with single joint in SHPB tensile tests

open access: yesYantu gongcheng xuebao, 2017
The energy dissipation in single jointed rocks under high strain rate is investigated by the split-Hopkinson pressure bar (SHPB) technique. The dynamic split tensile tests on both intact granite specimens and man-made single jointed granite specimens ...
LI Miao , QIAO Lan , LI Qing-wen
doaj   +1 more source

Waveforms of the repeated impact SHPB test of granite samples.

open access: yes, 2023
Waveforms of the repeated impact SHPB test of granite samples.
Jie Zhang (64655), Xu Wu (318848)
core   +1 more source

Research on damage viscoelastic dynamic constitutive model of granite

open access: yes矿业科学学报, 2019
Dynamic mechanical properties of granite were tested by a split Hopkinson pressure bar system with constant strain rate.The initial loading stage of stress-strain curve of granite is linear elasticity, and the rock material has a significant plastic ...
Ling Tianlong   +3 more
doaj   +1 more source

Superior Impact-Resistant Composite Hydrogels Through an Ionic Coupling Strategy. [PDF]

open access: yesAdv Mater
An ionic coupling strategy is developed to simultaneously reinforce networks and interfaces in composite hydrogels. Sodium citrate acts as a single multifunctional ionic coupler to strengthen the poly(vinyl alcohol) matrix via the Hofmeister effect, reinforce the chitosan–sodium alginate nanofiber network via desolvation and electrostatic crosslinking,
Zhuo H   +5 more
europepmc   +2 more sources

Experiences of work culture delineated by workplace sense of belonging: A comparative qualitative study of clinical support staff

open access: yesSSM - Health Systems
Background: Promoting workplace sense of belonging (WSB) is suggested to improve the wellbeing and retention of clinical support staff (CSS), a critical group in healthcare systems. This comparative thematic analysis explored how CSS with and without WSB
Petra J. Sprik   +6 more
doaj   +1 more source

Granite Strain Waveform Curve Analysis in SHPB Experiment [PDF]

open access: yesProceedings of the 2016 International Conference on Civil, Transportation and Environment, 2016
The damage degree of the rock and its strain has the nature relation, this paper choose the granite which is most common rock in the engineering practice as the research object. It carried on more categories of impact test research about granite specimen of length to diameter ratio is 0.8 times in using split hopkinson pressure bar (SHPB) device, and ...
Shufeng Liang   +3 more
openaire   +1 more source

Correction to : Estimating Measurement Uncertainty on Stress-Strain Curves from SHPB [PDF]

open access: yesExperimental Mechanics, 2020
Equation (12) in the original article [1] gives the strain from the measured voltage on a full bridge configuration of the four strain gages. The full-bridge is intended to measure tension-compression strain (type III full-bridge), the correct equation is therefore [2]
Brizard, Denis   +2 more
openaire   +3 more sources

Dynamic characteristics of combined coal rock based on RSM–BBD

open access: yesMeitan kexue jishu
The inherent instability of deep coal rock masses and coal-rock composite bearing structures significantly contributes to coal rock dynamic disasters in mines.
Beijing XIE   +5 more
doaj   +1 more source

Electrostatic Defrosting. [PDF]

open access: yesSmall Methods
Electrostatic defrosting is pioneered by suspending a high voltage electrode plate over a sheet of frost. As pictured here, electrostatic defrosting was able to remove three quarters of a frost sheet from a superhydrophobic glass substrate. Abstract Electrification of ice has been studied for over half a century, mostly in the context of atmospheric ...
Lolla VY   +4 more
europepmc   +2 more sources

Influence of loading and unloading effect on mechanical properties of impact rock under impact load

open access: yesMeitan xuebao
In order to study the effect of basic roof period pressure on the dynamic characteristics of impact pillar, one-dimensional dynamic and static combined loading SHPB experimental device is used to carry out dynamic impact experiment on the impact ...
Jianhang CHEN   +2 more
doaj   +1 more source

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