Results 31 to 40 of about 4,530 (208)

A waveform modification method for testing dynamic properties of rock under high temperature

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2021
In this study, a waveform modification method was proposed using a self-designed heating device combined with the split Hopkinson pressure bar (SHPB) technique for determination of dynamic behaviors of rock at high temperature.
Tubing Yin   +3 more
doaj   +1 more source

Compression of the material characteristics of steel, aluminum, wood and woven graphite epoxy composites in response to high strain rate load [PDF]

open access: yes, 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
core   +1 more source

A testing technique for concrete under confinement at high rates of strain [PDF]

open access: yes, 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
core   +6 more sources

Data processing of wave propagation in viscoelastic split Hopkinson pressure bar

open access: yesAIP Advances, 2022
In this study, the polymethyl methacrylate (PMMA) bar was taken as an example to study the data processing of the viscoelastic Split Hopkinson pressure bar (SHPB) during shock wave propagation.
Jiangping Chen   +3 more
doaj   +1 more source

Identification of non-homogeneous stress fields in dynamic experiments with a non parametric method [PDF]

open access: yes, 2010
International audienceStress and strain fields are generally assumed homogeneous in high strain rate experiments. Therefore, only mean stress and strain are measured. However, this assumption is not valid for soft materials and/or very high strain rates.
Aloui, Souheila   +2 more
core   +4 more sources

The high strain-rate behaviour of three molecular weights of polyethylene examined with a magnesium alloy split-Hopkinson pressure bar

open access: yes, 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
core   +1 more source

Response of CFRP laminates under high strain rate compression until failure [PDF]

open access: yes, 2005
This work describes an experimental characterization: the non-linear rate-dependent mechanical behavior of a composite material under compression.
F. J. Ferreira   +3 more
core   +1 more source

An Experimental Investigation into Wear Resistance of Mg-SiC Nanocomposite Produced at High Rate of Compaction [PDF]

open access: yesJournal of Stress Analysis, 2018
The Mg-SiC nanocomposite specimens were produced at low strain rate of 8×10−3s−1 using a universal INSTRON testing machine, strain rate of about 8×102s−1 using a drop hammer and at strain rate of about 1.6×103s−1 employing a Split Hopkinson Pressure Bar (
G.H. Majzoobi, K. Rahmani, A. Atrian
doaj   +1 more source

High strain rate compression testing of glass fibre reinforced polypropylene

open access: yesEPJ Web of Conferences, 2012
This paper details an investigation of the high strain rate compression testing of GFPP with the Split Hopkinson Pressure Bar (SHPB) in the through-thickness and in-plane directions.
Cloete T.J.   +3 more
doaj   +1 more source

Séparation et reconstruction des ondes dans les barres élastiques et viscoélastiques à partir de mesures redondantes

open access: yes, 2001
International audienceWhen using a classical SHPB (Split Hopkinson Pressure Bar) set-up, the useful measuring time is limited by the need of separating the waves propagating in opposite directions.
Bussac, Marie-Noëlle   +3 more
core   +4 more sources

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