Results 31 to 40 of about 12,650 (263)

Behavior of high-density polyethylene at high strain rates

open access: yesApplied and Computational Mechanics, 2021
The Hopkinson split pressure bar (HSPB) was used for the testing of three polymers at strain rates between 10^2 to 10^3 1/s. Higher strain rates were achieved using the direct Hopkinson test.
Trnka J.   +3 more
doaj   +1 more source

Split‐Hopkinson‐Pressure‐Bar simulations using MPM [PDF]

open access: yesPAMM, 2021
AbstractThe material point method (MPM) represents a discretization method that combines the beneficial aspects of a Lagrangian representation of material within an Eulerian solution scheme. Deformable bodies are discretized with material points that carry mass, kinematical quantities such as velocity and material history variables. The material points
Maassen, Sascha F.   +4 more
openaire   +1 more source

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

Comparison of Dislocation Structures in Cu Deformed at Strain Rates from Quasi-Static to Shock Loading Using X-ray Line Profile Analysis

open access: yesCrystals, 2023
Polycrystalline copper samples were deformed in the range of strain rate between ~10−3 and 107 s−1 using a material testing machine, split Hopkinson pressure bar and electric gun.
Zhijian Fan   +4 more
doaj   +1 more source

Correction Procedure of Wave Signals for a Viscoelastic Split Hopkinson Pressure Bar [PDF]

open access: yesProblemy Mechatroniki, 2016
A polymeric split Hopkinson pressure bar technique (SHPB) is preferred for testing materials with low mechanical impedance. However, the use of polymeric bars requires additional analysis for data reduction, temperature complications and additional ...
Jacek JANISZEWSKI   +2 more
doaj   +1 more source

Fracture Analysis of Ultrahigh-Strength Steel Based on Split Hopkinson Pressure Bar Test

open access: yesMetals, 2022
Impact loading is an important cause of fracture failure of ultrahigh-strength steel parts during service. Revealing the fracture mechanism of ultrahigh-strength steel under impact loading has important reference significance for the material preparation,
Shihong Xiao   +5 more
doaj   +1 more source

On the high strain rate behavior of 63-37 Sn-Pb eutectic solders with temperature effects [PDF]

open access: yes, 2014
This study presents experimental results performed on samples of Eutectic solder material (63 wt. % Sn 37 wt. % Pb) loaded at high strain rates and elevated temperatures.
Bin Wang   +20 more
core   +1 more source

A revised Ladevèze criteria for carbon fiber reinforced laminated plates

open access: yesData in Brief, 2019
All parameters of revised Ladevèze failure criterion in Table 1 were determined based on mechanical tests which mainly include quasi-static tensile experiments, quasi-static compressive experiments, quasi-static tensile cyclic loading experiments, the ...
Cunxian Wang   +4 more
doaj   +1 more source

Numerical Modeling of a Split Hopkinson Pressure Bar Test

open access: yesEuropean Journal of Engineering and Technology Research, 2021
In this work, a one-dimensional simplified model was developed to predict stress, strain, and strain-rate in high strain rates Hopkinson pressure bar experiments, namely, between 500-5000/s. To this goal, a one-dimensional model for Hokinson bar tests was developed based on analyses of wave propagation in bars and assuming the specimen is under ...
Ahmad R. Aljohani   +2 more
openaire   +3 more sources

Application of photon Doppler velocimetry to direct impact Hopkinson pressure bars. [PDF]

open access: yes, 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
core   +2 more sources

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