Results 11 to 20 of about 594,528 (216)
Wave Dispersion and Attenuation in Viscoelastic Split Hopkinson Pressure Bar
Shock and Vibration, 1998 A viscoelastic split Hopkinson pressure bar intended for testing soft materials with low acoustic impedance is studied. Using one-dimensional linear viscoelastic wave propagation theory, the basic equations have been established for the determination of ...
Z.Q. Cheng, J.R. Crandall, W.D. Pilkey
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3D-Hopkinson Bar: New Experiments for Dynamic Testing on Soils [PDF]
Soils and Foundations, 1999 The direct analysis of the dynamic response of materials is possible using Split Hopkinson pressure bar method. For soils, it has to be adapted since the specimen has generally poor mechanical properties. An original experimental arrangement called "Three-Dimensional Split Hopkinson Pressure Bar" (3D SHPB) is proposed.
Semblat, Jean-François +2 more
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Electromagnetic Compressive Split Hopkinson Bar [PDF]
, 2008 This paper proposes a new design for the compressive split Hopkinson bar that makes use of the intense pressure created in a transient magnetic field formed by the passage of a pulse of electric current through a series of coils. The proposed technology enables to characterize the behaviour of materials under high strain-rates with a small acceleration
Martins, P. A. F. +2 more
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Commissioning of universal Split Hopkinson Bar for dynamic compression and tension experiments [PDF]
Acta Polytechnica CTU ProceedingsSplit Hopkinson Bar is an experimental apparatus designed for acquiring material properties in dynamic regime. The apparatus is usually constructed as a single purpose experimental device for specific type of loading, most commonly either compression ...
Lukáš Kocian +4 more
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Biaxial Compression Tests on Hopkinson Bars [PDF]
The 18th International Conference on Experimental Mechanics, 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 whereas the external output bar measures its transversal loading via a mechanism with sliding surfaces.
Bastien Durand, Ahmed Zouari, Han Zhao
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Crystals, 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
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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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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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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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A Laboratory-Scale Instrumented Forging Hammer as an Intermediate Strain Rate Testing Device [PDF]
EPJ Web of Conferences, 2021 Mechanical characterisation of metallic materials at intermediate strain rates is essential to calibrate and validate computational models for industrial applications such as high-speed forming processes i.e. hammer forging, blanking, forming, etc.
Agirre Julen +5 more
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