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Analysis on characteristics and mechanism for rock fracture in deep rock with cracks under dynamic-static coupling effect. [PDF]
Sci RepGe J +7 more
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Factual observations of dynamic bone crushing. [PDF]
Sci RepAharoni S, Rittel D, Shemtov-Yona K.
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Hopkinson bar experimental technique: A critical review
Applied Mechanics Reviews, 2004A critical review of three classic papers by B Hopkinson, RM Davies, and H Kolsky, and the state-of-the-art in Hopkinson bar experimental techniques is presented. The validity and applicability of the assumption made in the 1D Hopkinson bar theory are discussed.
John W Gillespie
exaly +2 more sources
Measurement Science and Technology, 1995
The conventional split Hopkinson pressure bar system for materials testing at high strain rates produces loading pulses that have a high level of oscillation superimposed on their approximately trapezoidal shape. These oscillations, which are a consequence of the short risetime of the loading pulse produced by the impact of a projectile, cause ...
D J Parry, A G Walker, P R Dixon
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The conventional split Hopkinson pressure bar system for materials testing at high strain rates produces loading pulses that have a high level of oscillation superimposed on their approximately trapezoidal shape. These oscillations, which are a consequence of the short risetime of the loading pulse produced by the impact of a projectile, cause ...
D J Parry, A G Walker, P R Dixon
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Split Bar Hopkinson with Springs Striker Bar Launcher
Applied Mechanics and Materials, 2014Research on the dynamic strength of various materials such as metallic materials, polymers, concrete has been done by many researchers. The Split Hopkinson Bar method is still used to produce a high strain rate. In this method, a striker bar is usually launched using pressurized gas.
Agus Sigit Pramono +2 more
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Experimental Mechanics, 1980
Experiments in which pressure pulses are propagated in a column of fluid held in a stiff tube are described. A parameter, η, which characterizes the tube stiffness has been defined and a one-dimensional model of the wave propagation which includes dissipation both in the volume of the fluid and at the wall of the containing tube has been developed.
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Experiments in which pressure pulses are propagated in a column of fluid held in a stiff tube are described. A parameter, η, which characterizes the tube stiffness has been defined and a one-dimensional model of the wave propagation which includes dissipation both in the volume of the fluid and at the wall of the containing tube has been developed.
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Stored Torque Torsional Split Hopkinson Bar Apparatus
Journal of Aerospace Sciences and Technologies, 2023Torsional Split Hopkinson Bar (TSHB) apparatus is extensively used for obtaining shear response of the materials in the strain rate range of 102 s-1 to 104 s-1. Even though the stored torque TSHB is widely used, its design and development technique is not readily available.
Bhaskar Ramagiri +2 more
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Spallationsversuche von Faserbetonprobekörpern im Split‐Hopkinson‐Bar
Beton- und Stahlbetonbau, 2021AbstractAuf Basis von Spallationsversuchen an faserbewehrten Betonproben im Split‐Hopkinson‐Bar wurden die dynamischen Kennwerte Elastizitätsmodul, Zugfestigkeit und Bruchenergie ermittelt. Untersucht wurden Betonproben der Festigkeitsklassen C20/25, C40/50 und C80/95 mit Stahlfasergehalten von 0 bis 2,0 Vol.‐ % sowie mit Carbon‐ und PP‐Fasern im ...
Oliver Mosig +5 more
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Generalization of split Hopkinson bar technique to use viscoelastic bars
International Journal of Impact Engineering, 1994Summary To study the high strain-rate mechanical behaviour of materials having lower wave impedance, it is suggested to generalize the split Hopkinson bar technique by using polymeric bars. The key of such a generalization lies in the method for determining the stresses and particle velocities at two interfaces of specimen from the strain pulse ...
Lili Wang +3 more
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