Results 21 to 30 of about 1,821 (184)
Wave Dispersion and Attenuation in Viscoelastic Split Hopkinson Pressure Bar
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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Mechanical Response of HPFRCC in Tension and Compression at High Strain Rate and High Temperature
The mechanical response of High Performance Fibre-Reinforced Cementitious Composite (HPFRCC) has been analyzed at high strain rates and high temperature.
E. CADONI +5 more
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When designing a split Hopkinson system, the yield strength of the selected pressure bar material determines the maximum stress attainable within deforming samples and also, the maximum striker velocity that is usable to prevent plasticity in bars.
Arsenault R., Bolduc M.
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Implementation of viscoelastic Hopkinson bars
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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Impact Testing of 3D Re-Entrant Honeycomb Polyamide Structure Using Split Hopkinson Pressure Bar
In this study, a total of 30 3D re-entrant honeycomb specimens made of polyamide were fabricated with various configurations by using the additive manufacturing (AM) technique.
Jiangping Chen, Weijun Tao, Shumeng Pang
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Numerical Modeling of a Split Hopkinson Pressure Bar Test
In this work, a one-dimensional simplified model was developed to predict stress, strain, and strain-rate in high strain rates Hopkinson pressure bar experiments, namely, between 500-5000/s. To this goal, a one-dimensional model for Hokinson bar tests was developed based on analyses of wave propagation in bars and assuming the specimen is under ...
Ahmad R. Aljohani +2 more
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One-dimensional dynamic compressive behavior of dry calcareous sand at high strain rates
Calcareous sand has distinct characteristics in comparison with silica sand, such as dynamic behavior at high strain rates (HSRs). This is closely related to pile driving, aircraft wheel loading and mining activities.
Yaru Lv, Jiagui Liu, Ziming Xiong
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Size Effect in the Split Hopkinson Pressure Bar Experiment
Abstract For many structures, their service environment is very strict, and the requirements for the impact resistance of materials are very high. Therefore, the dynamic testing method has important scientific significance and application value for practical engineering.
Hailiang Nie +7 more
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Stress Equilibrium in the Split Hopkinson Pressure Bar Test [PDF]
The compressive split Hopkinson pressure bar (SHPB) technique allows the stresses on each end of the specimen to be measured individually. Results are presented showing a large difference between these end pressures, depending on specimen length and loading rate. The mechanisms responsible are show to be a combination of inertial forces and non-uniform
Wu, X., Gorham, D.
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The paper presents the results of investigation on X30MnAlSi26-4-3 austenitic steel subjected to dynamic compression using the split Hopkinson pressure bar. The strain rate was 3700 s−1.
Śmiglewicz A. +4 more
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