Influence of Imperfect Position of a Striker and Input Bar on Wave Propagation in a Split Hopkinson Pressure Bar (SHPB) Setup with a Pulse-Shape Technique
Open Access
- 2 April 2020
- journal article
- research article
- Published by MDPI AG in Applied Sciences
- Vol. 10 (7), 2423
- https://doi.org/10.3390/app10072423
Abstract
The effect of using a pulse shaper technique, such as rounding a striker or applying a pulse shaper on the signals recorded with the split Hopkinson pressure bar (SHPB) technique, when the striker and the input bar are in an imperfect position, was investigated. Two of the most common cases have been analyzed: an offset of the symmetry axes of the striker and the input bar; and an inclination angle between the striker and the input bar. LS-Dyna software was used to examine this problem numerically. The inclination angle imperfection has a significant impact on signal disturbances, whereas the use of a rounded striker significantly affects the limitation of the vibration flexural modes. In all considered cases, a slight imperfection causes a reduction in the high-frequency Pochhammer–Chree oscillations.This publication has 25 references indexed in Scilit:
- Misalignment effect in the split Hopkinson pressure bar techniqueInternational Journal of Impact Engineering, 2012
- Appraisal of Pulse-Shaping Technique in Split Hopkinson Pressure Bar Tests for Brittle MaterialsInternational Journal of Protective Structures, 2010
- Split Hopkinson pressure bar multiple reloading and modeling of a 316 L stainless steel metallic hollow sphere structureInternational Journal of Impact Engineering, 2010
- An experimental assessment of friction effects in the split Hopkinson pressure bar using the ring compression testInternational Journal of Impact Engineering, 2007
- The effect of radial inertia on brittle samples during the split Hopkinson pressure bar testInternational Journal of Impact Engineering, 2007
- Mortar based frictional contact formulation for higher order interpolations using the moving friction coneComputer Methods in Applied Mechanics and Engineering, 2006
- Dynamic Compressive Responses of Intact and Damaged Ceramics from a Single Split Hopkinson Pressure Bar ExperimentExperimental Mechanics, 2004
- AN EFFECT OF SPECIMEN SIZE IN THE HIGH STRAIN RATE COMPRESSION TESTJournal de Physique IV, 1991
- Materials testing at high constant strain ratesJournal of Physics E: Scientific Instruments, 1982
- The dynamic compression testing of solids by the method of the split Hopkinson pressure barJournal of the Mechanics and Physics of Solids, 1963