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High strain rate elasto-plasticity identification using the Image-Based Inertial Impact (IBII) test part 2: Experimental validation

High strain rate elasto-plasticity identification using the Image-Based Inertial Impact (IBII) test part 2: Experimental validation
High strain rate elasto-plasticity identification using the Image-Based Inertial Impact (IBII) test part 2: Experimental validation
Current high strain rate testing techniques typically rely on the split-Hopkinson bar (SHB). The early response in an SHB test is corrupted by inertia making it difficult to accurately characterise the transition from elasticity to plasticity for metals. Therefore, a new test method is required. This article is the second in a two part series which aims at developing a new high strain rate test for elasto-plasticity identification using the ImageBased Inertial Impact (IBII) method. The goal of this article is to validate the new method experimentally using IBII tests on aluminium 6082-T6 (minimal rate sensitivity) and stainless steel 316L (rate sensitive). Comparison of the quasi-static and dynamic stress-strain curves for the aluminium case showed minimal difference providing experimental validation of the method. The same comparison for the steel showed that the method was able to detect rate sensitivity.
1475-1305
Fletcher, Lloyd
48dca64b-f93c-4655-9205-eaf4e74be90c
Davis, Frances M
20f89066-bbac-42dc-908d-d89a747dc399
Pierron, Fabrice
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Dreuilhe, Sarah Marie
9f97edf5-6f14-4668-8c1f-7ceb88734542
Marek, Aleksander
6d758ff6-6423-462d-88e9-d44e71df4c3d
Fletcher, Lloyd
48dca64b-f93c-4655-9205-eaf4e74be90c
Davis, Frances M
20f89066-bbac-42dc-908d-d89a747dc399
Pierron, Fabrice
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Dreuilhe, Sarah Marie
9f97edf5-6f14-4668-8c1f-7ceb88734542
Marek, Aleksander
6d758ff6-6423-462d-88e9-d44e71df4c3d

Fletcher, Lloyd, Davis, Frances M, Pierron, Fabrice, Dreuilhe, Sarah Marie and Marek, Aleksander (2020) High strain rate elasto-plasticity identification using the Image-Based Inertial Impact (IBII) test part 2: Experimental validation. Strain. (In Press)

Record type: Article

Abstract

Current high strain rate testing techniques typically rely on the split-Hopkinson bar (SHB). The early response in an SHB test is corrupted by inertia making it difficult to accurately characterise the transition from elasticity to plasticity for metals. Therefore, a new test method is required. This article is the second in a two part series which aims at developing a new high strain rate test for elasto-plasticity identification using the ImageBased Inertial Impact (IBII) method. The goal of this article is to validate the new method experimentally using IBII tests on aluminium 6082-T6 (minimal rate sensitivity) and stainless steel 316L (rate sensitive). Comparison of the quasi-static and dynamic stress-strain curves for the aluminium case showed minimal difference providing experimental validation of the method. The same comparison for the steel showed that the method was able to detect rate sensitivity.

Text
Fletcheretal_2020_ElastoPlasIBII_Part2 - Accepted Manuscript
Restricted to Repository staff only until 21 December 2021.
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Accepted/In Press date: 21 December 2020

Identifiers

Local EPrints ID: 446213
URI: http://eprints.soton.ac.uk/id/eprint/446213
ISSN: 1475-1305
PURE UUID: 34a61116-3598-4274-a750-f55e93f522eb
ORCID for Fabrice Pierron: ORCID iD orcid.org/0000-0003-2813-4994

Catalogue record

Date deposited: 28 Jan 2021 17:32
Last modified: 18 Feb 2021 17:14

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Contributors

Author: Lloyd Fletcher
Author: Frances M Davis
Author: Fabrice Pierron ORCID iD
Author: Sarah Marie Dreuilhe
Author: Aleksander Marek

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