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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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Two dimensional plastic waves in quasi rate independent viscoplastic materials [PDF]
Theoretical and Applied Mechanics, 2011 The subject of this work is an analysis of the experimental biaxial Hopkinson bar technique when such a device consists of a cruciform tensile specimen surrounded by four very long elastic bars.
Mićunović M.V. +5 more
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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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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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Experiments with the Hopkinson pressure bar [PDF]
Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1923 Abstract In November, 1913, the late Professor Bertram Hopkinson read a paper before the Royal Society entitled “ A method of measuring the Pressure produced in the Detonation of High Explosives or by the Impact of Bullets.” (‘ Phil. Trans.,’ Royal Society of London. Series A, vol. 213 ; and Collected Papers, p. 438.) After this paper
J. W. Landon, H. Quinney
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