Results 181 to 190 of about 4,834 (220)
Some of the next articles are maybe not open access.
TWO-STEP LOADING IN A SPLIT HOPKINSON PRESSURE BAR
AIP Conference Proceedings, 2008In conventional Split Hopkinson Pressure Bar (SHPB) experiments the striker bar is a single rod and the sample is loaded at one strain rate. In this study, we present results from a system that uses a striker bar formed from two rods of different materials.
Rachel E. Briggs +8 more
openaire +1 more source
Some experiments with the split hopkinson pressure bar∗
Journal of the Mechanics and Physics of Solids, 1964Abstract A n application of the split Hopkinson pressure bar to the dynamic testing of materials is given whereby continuous records of the strain vs. time, strain rate vs. time, stress vs. time, and stress vs. strain may be simultaneously recorded. For many materials a nearly constant true plastic strain rate can be maintained for loading durations
openaire +1 more source
Split-Hopkinson Pressure Bar Testing of Unsaturated Sand
Geotechnical Testing Journal, 1990Abstract High amplitude, split-Hopkinson pressure bar (SHPB) laboratory tests were conducted on compacted specimens of 50/80 silica sand to evaluate the influence of saturation on compressional-stress wave velocity, stress transmission, and attenuation. Stress wave velocity and transmitted stress increase as the saturation increases from
WA Charlie, CA Ross, SJ Pierce
openaire +1 more source
Data processing in the split Hopkinson pressure bar tests
International Journal of Impact Engineering, 1994Summary The effect on dynamic stress—strain curves of dispersion and shifting of elastic strain pulses travelling in a split Hopkinson pressure bar is reported. The dispersion correction is done in the frequency domain after employing FFT algorithm by adjusting the phase of each Fourier component. The three pulses (incident, reflected and transmitted)
J.M. Lifshitz, H. Leber
openaire +1 more source
Split-Hopkinson pressure bar tests on pure tantalum
AIP Conference Proceedings, 1998Pure tantalum (Ta) was loaded in compression by a split-Hopkinson pressure bar (SHPB) to strain rates from 450 to 6350 s−1. The results are compared with SHPB data for commercial Ta and with predictions from the constitutive model for Ta developed by Zerilli and Armstrong (Z-A). The main conclusions are: (1) the flow stress versus log strain rate agree
Richard D. Dick +2 more
openaire +1 more source
Thickness effects in split Hopkinson pressure bar tests
Polymer, 1993Abstract Results are presented for the high strain rate behaviour of a medium and high density polyethylene, polycarbonate and poly(ether ether ketone) in compression for strain rates up to 104s−1 obtained using a split Hopkinson pressure bar apparatus.
N.N Dioh, P.S Leevers, J.G Williams
openaire +1 more source
Dispersion Correction for Split-Hopkinson Pressure Bar Data
1988Abstract : Large diameter Split-Hopkinson Pressure Bar (SHPB) systems required a correction of the strain signals to account for wave dispersion. Using a Fast Fourier transform (FFT) algorithm a wave dispersion correction program was developed for the 3.0 inch diameter SHPB at the University of Florida and the 2. 0 inch diameter SHPB at Tyndall AFB FL.
J. C. Gong +3 more
openaire +1 more source
Split Hopkinson Pressure Bar Test Results
2022Derek G. Spear, Anthony N. Palazotto
openaire +1 more source
Examination of Validity for Viscoelastic Split Hopkinson Pressure Bar Method
2011The examination of the accuracy for a split Hopkinson pressure bar method with viscoelastic input and output bars (viscoelastic SHPB method), which is one of the methods of evaluating the dynamic properties for viscoelstic materials, is executed. The key-point for accurately determining the dynamic properties of low impedance materials lies in how to ...
T. Tamaogi, Y. Sogabe
openaire +1 more source
The Effect of Sabot Mass on the Striker Bar for Split Hopkinson Pressure Bar Experiments
Experimental Mechanics, 2002M. J. Forrestal, D. J. Frew, W. Chen
openaire +1 more source