Results 171 to 180 of about 11,857 (209)

Misalignment effect in the split Hopkinson pressure bar technique

International Journal of Impact Engineering, 2012
Abstract It is well known that alignment of the bar in a split Hopkinson pressure bar (SHPB) experiment plays a significant role in producing a good clean signal. In this paper, numerical simulations using ANSYS-LSDYNA are employed to comprehensively study the effects of bar misalignment in producing a distorted signal.
Kariem, Muhammad A., Beynon, John H., Ruan, Dong   +2 more
openaire   +2 more sources

Split Hopkinson pressure bar experiments on polymeric foams

International Journal of Vehicle Design, 2005
Proper modifications are required when a split Hopkinson pressure bar (SHPB) is used to determine the dynamic compressive properties of polymeric foams. Pulse shaping is necessary to ensure valid testing conditions: constant strain-rate deformation under dynamically equilibrated stresses, which need to be experimentally verified.
B. Song, W. Chen, X. Jiang
openaire   +1 more source

Round-Robin test of split Hopkinson pressure bar

International Journal of Impact Engineering, 2019
Abstract A Round-Robin test using split Hopkinson pressure bars (SHPBs) has been conducted by four universities: Swinburne University of Technology (SUT), Australia; University of Sao Paulo (USP), Brazil; University of Cape Town (UCT), South Africa; and Nanyang Technological University (NTU), Singapore. Each university had different sets of SHPBs and
Muhammad A. Kariem, Rafael C. Santiago, Reuben Govender, Dong Wei Shu, Dong Ruan, Gerald Nurick, Marcilio Alves, Guoxing Lu, Genevieve S. Langdon   +8 more
openaire   +2 more sources

Thickness effects in split Hopkinson pressure bar tests

Polymer, 1993
Abstract 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

Mini Round-Robin Test on the Split Hopkinson Pressure Bar

Journal of Testing and Evaluation, 2017
Abstract It is known that the split Hopkinson pressure bar (SHPB) technique has not been standardized yet. A standardized SHPB technique is necessary to provide guidelines for determining the intrinsic material properties. One possibility to examine the consistency of the SHPB technique is to conduct a mini round-robin test.
Kariem, M. A., Ruan, D., Beynon, J. H., Prabowo, D. A.   +3 more
openaire   +2 more sources

Dispersion Correction for Split-Hopkinson Pressure Bar Data

1988
Abstract : 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, E. Jerome, D. A. Jenkins, L. E. Malvern   +3 more
openaire   +1 more source

Split Hopkinson Pressure Bar Test Results

2022
Derek G. Spear, Anthony N. Palazotto
openaire   +1 more source

The Effect of Sabot Mass on the Striker Bar for Split Hopkinson Pressure Bar Experiments

Experimental Mechanics, 2002
M. J. Forrestal, D. J. Frew, W. Chen
openaire   +1 more source

Examination of Validity for Viscoelastic Split Hopkinson Pressure Bar Method

The 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

Custom control system for Split Hopkinson Pressure bars

2021
openaire   +1 more source