Results 31 to 40 of about 6,265 (226)
Energy dissipation of rock specimens under high strain rate with single joint in SHPB tensile tests
Yantu 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
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Research on damage viscoelastic dynamic constitutive model of granite
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
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Electrostatic Defrosting. [PDF]
Small MethodsElectrostatic 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
Compression of the material characteristics of steel, aluminum, wood and woven graphite epoxy composites in response to high strain rate load [PDF]
, 2012 The stresses developed in the material by impact load are analyzed experimentally, numerically, and analytically for specimens out of steel, aluminum, wood and woven graphite epoxy composites to investigate the material response to high strain rate ...
Allazadeh, M. R. +2 more
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Stress-strain synchronization for high strain rate tests on brittle composites [PDF]
, 2018 Nowadays, many researchers develop rate-dependent composite material models for application in dynamic simulations. Ideally, full stress-strain curves at a wide range of strain rates are available for identification of the different parameters of these ...
Garoz Gómez, David +6 more
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Application of photon Doppler velocimetry to direct impact Hopkinson pressure bars. [PDF]
, 2016 Direct impact Hopkinson pressure bar systems offer many potential advantages over split Hopkinson pressure bars, including access to higher strain rates, higher strains for equivalent striker velocity and system length, lower dispersion, and faster ...
Jardine, Andrew P, Lea, Lewis J
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SSM - Health SystemsBackground: 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
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, 2013 A traditional split-Hopkinson pressure bar system has been modified by the addition of ZK60A magnesium alloy pressure bars in order to increase the resolution of data when examining specimens of low-density, high-density and ultra-high molecular weight ...
Hughes, Foz +2 more
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A testing technique for concrete under confinement at high rates of strain [PDF]
, 2008 International audienceA testing device is presented for the experimental study of dynamic compaction of concrete under high strain rates. The specimen is confined in a metallic ring and loaded by means of a hard-steel Hopkinson pressure bar (80 mm ...
Forquin, Pascal +2 more
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Correction to : Estimating Measurement Uncertainty on Stress-Strain Curves from SHPB [PDF]
Experimental 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