2022-Sustainable Industrial Processing Summit
SIPS2022 Volume 3
Horstemeyer Intl.Symp.
Multiscale Materials Mechanics & Applications
| Editors: | F. Kongoli,E. Aifantis, A, Konstantinidis, D, Bammann, J. Boumgardner, K, Johnson, N, Morgan, R. Prabhu, A. Rajendran |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2022 |
| Pages: | 382 pages |
| ISBN: | 978-1-989820-38-4(CD) |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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A Methodology for Coupling Hopkinson/Kolsky Bar Experiments and Modeling of Tension, Compression, and Torsion at Dynamic Rates
Mark Horstemeyer1;1LIBERTY UNIVERSITY, Lynchburg, United States;
Type of Paper: Regular
Id Paper: 565
Topic: 1
Abstract:
In this paper, we examine multi-axial stress states using a coupled experimental and computational methodology for analyzing high strain rate phenomena of a 6061-T6 aluminum alloy. A variety of experiments and computations were performed to highlight the value of coupling experiments with simulations to gain insight into complex loading conditions. Tensile, torsion/shear, and compression results of a 6061-T6 aluminum alloy were obtained as a base material by a variety of established high strain rate testing methods. Three different Hopkinson/Kolsky pressure bar setups were used: a compression setup to analyze compression, tension, and shear; a tension setup to analyze tension; and a torsion setup to analyze torsion. The resulting methodology allows for experimental corroboration, and the simulations to probe some phenomena that is otherwise impossible to observe during an experiment, while simultaneously testing the validity of the model via direct comparison with measured strain gage histories. While caution must be exercised when using such methods, significant insight during complex loading or loading of complex structures can be acquired, especially those for which the equilibrium conditions necessary for traditional Hopkinson/Kolsky bar testing are impossible to obtain but the dynamic response is still essential.