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Biaxial Compression Tests on Hopkinson Bars [PDF]
Proceedings, 2018 A biaxial compression Hopkinson bar set-up bas been designed. It consists in a projectile, an input bar and two co-axial output bars. After the projectile impact on the input bar, the internal output bar measures the axial loading of the cross sample ...
Bastien Durand, Ahmed Zouari, Han Zhao
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Implementation of viscoelastic Hopkinson bars [PDF]
EPJ Web of Conferences, 2012 Knowledge of the properties of soft, viscoelastic materials at high strain rates are important in furthering our understanding of their role during blast or impact events.
Govender R., Cloete T., Curry R.
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Dynamic rock tests using split Hopkinson (Kolsky) bar system – A review
Journal 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
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Numerical investigation on the effect of specimen gripping arrangement on dynamic shear characterization using Torsion Split Hopkinson Bar [PDF]
EPJ Web of Conferences, 2021 Torsion Split Hopkinson Bar (TSHB) is widely used in the dynamic shear characterization of material under pure shear loading. In TSHB, tubular specimens with either circular or hexagonal flanges are used. The specimens with circular flanges are generally
Ramagiri Bhaskar +1 more
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Development of an innovative specimen geometry for tensile split Hopkinson tests [PDF]
EPJ Web of Conferences, 2021 Specimen manufacturing is one of the critical issues to solve during a dynamic material characterization, especially by mean of the Hopkinson bar technique. In particular, concerning tensile testing, the sample is generally axisymmetric with two threaded
Peroni Marco +2 more
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The split Hopkinson bar bulge setup: a novel dynamic biaxial test method [PDF]
EPJ Web of Conferences, 2021 In sheet metal forming, very often, large plastic deformations are imposed to a thin plate. An accurate description of the material’s elastoplastic response is therefore of paramount importance to perform finite element (FE) simulations of an actual ...
Corallo Luca, Verleysen Patricia
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Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014 In order to perform experimental identification of high strain rate material models, engineers have only a very limited toolbox based on test procedures developed decades ago. The best example is the so-called split Hopkinson pressure bar based on the bar concept introduced 100 years ago by Bertram Hopkinson to measure blast pulses.
Pierron, F., Zhu, H., Siviour, C.
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Blast Quantification Using Hopkinson Pressure Bars [PDF]
Journal of Visualized Experiments, 2016 Near-field blast load measurement presents an issue to many sensor types as they must endure very aggressive environments and be able to measure pressures up to many hundreds of megapascals. In this respect the simplicity of the Hopkinson pressure bar has a major advantage in that while the measurement end of the Hopkinson bar can endure and be exposed
Clarke, S.D. +8 more
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Miniature Beryllium Split-Hopkinson Pressure Bars for Extending the Range of Achievable Strain-Rates
Metals, 2022 Conventional Split Hopkinson Pressure Bars (SHPB) or “Kolsky” bars are often used for determining the high-rate compressive yield and failure strength of materials.
Bryan Zuanetti +6 more
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Soft projectile impact forces measurement using Hopkinson bars: application to ice, artificial bird and rubber [PDF]
EPJ Web of Conferences, 2021 This work presents an experimental campaign of impacts of soft projectiles to measure the induced force during the impact. Three different materials acting as soft impactors that could strike against a aeronautical structural component: ice, artificial ...
del Cuvillo Ramón +3 more
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