A novel technique for dynamic shear testing of bulk metals with application to 304 austenitic stainless steel
Journal article
Authors | Jia, B., Rusinek, A., Pesci, R., Bernier, R., Bahi, S. and Wood, P. |
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Abstract | This paper describes a new single-shear specimen (SSS) and method to characterize the dynamic shear behavior of bulk metals using a traditional Split Hopkinson Pressure Bar (SHPB). By this method, the shear behavior of materials can be tested conveniently over a wide range of strain rates within 105 s−1. This technique was applied to a 304 austenitic stainless steel (ASS) under shear strain rates from 0.001 s−1 to 38700 s−1 at room temperature. Based on finite element (FE) simulations, it was found that the deformation of the specimen shear zone was dominated by shear stress/strain components. Stress state parameters represented by stress triaxiality and Lode angle parameter were found very close to zero, indicating a deformation mode of simple shear. Besides, an obvious gap existed between the local deformation behavior in the specimen shear zone and the macroscopic stress-strain relations measured by the strain gauges on the SHPB bars. A correction coefficient method was adopted to extract the real shear behavior from the experimentally obtained force-displacement data. Through comparisons between the tested and simulated stress-strain curves, a good agreement was obtained. |
Keywords | Mechanical Engineering; Modelling and Simulation; General Materials Science; Mechanics of Materials; Applied Mathematics; Condensed Matter Physics |
Year | 2020 |
Journal | International Journal of Solids and Structures |
Journal citation | 204-205, pp. 153-171 |
Publisher | Elsevier BV |
ISSN | 0020-7683 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.ijsolstr.2020.08.019 |
Web address (URL) | https://www.elsevier.com/tdm/userlicense/1.0/ |
http://creativecommons.org/publicdomain/zero/1.0/ | |
hdl:10545/625314 | |
Publication dates | 03 Sep 2020 |
Publication process dates | |
Accepted | 24 Aug 2020 |
Rights | © 2020 Elsevier Ltd. All rights reserved. |
CC0 1.0 Universal | |
Contributors | ENSAM-Arts et Métiers ParisTech, Paris, Lorraine University, France, Institute of Fundamental Technological Research, Warsaw, Poland, Carlos III University, Madrid and University of Derby |
File | File Access Level Open |
File | File Access Level Open |
https://repository.derby.ac.uk/item/9383y/a-novel-technique-for-dynamic-shear-testing-of-bulk-metals-with-application-to-304-austenitic-stainless-steel
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