Paper Title:
Numerical Simulation of Double Specimens in Split Hopkinson Pressure Bar Testing
  Abstract

The split Hopkinson pressure bar (SHPB) is the most commonly used technique to characterize the dynamic behaviour of materials at very high strain rates. However, a classic single specimen test only generates a single stress-strain curve at the average strain rate of the test. This paper proposes three arrangements on the use of double specimens in SHPB compression testing. All waves propagating along the bars have been used to analyse the dynamic behaviour of the specimens. To simulate the test and predict its dynamic performance, an axisymmetric finite element analysis using LS-DYNA was conducted for the experiment using 13 mm bar diameter. The validity of the simulations was checked with experimental data from normal SHPB testing. Based on the simulations, the modified techniques are achievable and at least two stress-strain curves of materials can be extracted without violating the requirement of a valid SHPB test.

  Info
Periodical
Materials Science Forum (Volumes 654-656)
Main Theme
Edited by
Jian-Feng Nie and Allan Morton
Pages
2483-2486
DOI
10.4028/www.scientific.net/MSF.654-656.2483
Citation
M. A. Kariem, J. H. Beynon, D. Ruan, "Numerical Simulation of Double Specimens in Split Hopkinson Pressure Bar Testing", Materials Science Forum, Vols. 654-656, pp. 2483-2486, 2010
Online since
June 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: S. Kamel, Robert C. Wimpory, Michael Hofmann, Kamran M. Nikbin, N.P. O'Dowd
Abstract:This paper considers the prediction of the effects of tensile and compressive residual stress in fracture mechanics specimens by the...
275
Authors: Chun Huan Guo
Abstract:The effect of specimen overhang on contact state between specimen and supports has been investigated by analyzing stress wave propagation in...
1374
Authors: Peng Mi, Sen Liang, Sarah Zhang
Structure Materials
Abstract:Embedded and co-cured composite damping structure is a novel damping processing structure, which possesses excellent damping properties and...
1961
Authors: Xin Wang
Chapter 7: Computational Mechanics
Abstract:This article analyzes five concrete-filled double steel tubular column models based on the large finite element analysis software ABAQUS. An...
3184
Authors: Xin Wu Ma, Guo Qun Zhao, Wen Juan Li
Chapter 5: Materials Processing and Chemical Technologies
Abstract:A new method for determination of friction coefficient in sheet metal forming of Mg alloy AZ31B is presented in this paper. The method is...
430