Results 11 to 20 of about 1,821 (184)

The Direct Impact Method for Studying Dynamic Behavior of ‎Viscoplastic Materials [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2022
This work is devoted to the direct impact method for determining the deformation diagrams of viscoplastic materials at high strain rates. As the conventional Split Hopkinson Pressure Bar method, the direct impact method is based on the measuring bar ...
Artem Basalin   +5 more
doaj   +1 more source

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

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

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

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

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

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

Dynamic tensile strength enhancement of concrete in split Hopkinson pressure bar test

open access: yesAdvances in Mechanical Engineering, 2018
Split Hopkinson pressure bar technique has been widely used to measure the dynamic tensile strength of concrete materials. Most experimental results show that the tensile strength of concrete material increases with strain rates.
Jingyi Chen   +4 more
doaj   +1 more source

Two-wave photon Doppler velocimetry measurements in direct impact Hopkinson pressure bar experiments

open access: yesEPJ Web of Conferences, 2015
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 ...
Lea Lewis J., Jardine Andrew P.
doaj   +1 more source

Dynamic rock tests using split Hopkinson (Kolsky) bar system – A review

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2015
Dynamic properties of rocks are important in a variety of rock mechanics and rock engineering problems. Due to the transient nature of the loading, dynamic tests of rock materials are very different from and much more challenging than their static ...
Kaiwen Xia, Wei Yao
doaj   +1 more source

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