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An Improved Load Introduction Technique for Dynamic Material Characterisation at Intermediate Strain Rate

Yoo, Sanghyun and Schueler, Dominik and Brodbeck, Marcel and Toso, Nathalie and Catalanotti, Giuseppe and Voggenreiter, Heinz (2018) An Improved Load Introduction Technique for Dynamic Material Characterisation at Intermediate Strain Rate. Multidisciplinary Digital Publishing Institute (MDPI). The 18th International Conference on Experimental Mechanics, 1–5 July 2018, Brussels, Belgium. doi: 10.3390/ICEM18-05203.

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Abstract

Dynamic properties at intermediate strain rate are inherently difficult due to the dynamic interactions between the test specimen and the test machine. These effects obscure the interpretation of test results and therefore can make the derivation of the material properties difficult and unprecise. Soft materials can be used within load introduction devices to mitigate the inertia effect that typically occurs in dynamic tests. In this paper, dynamic tensile tests were performed within the strain rate range of 0.1 s−1 to 400 s−1 on high strength steels. With the aim of evaluating the performance of damping materials in the slack adaptor, copper and acrylic tapes were used. Experimental results show that both damping materials may be used to effectively reduce the oscillations in the measured force signal. The outcome of this project will provide the test procedure for dynamic testing at intermediate strain rates, which can produce reliable test results for materials with low failure to strain.

Item URL in elib:https://elib.dlr.de/139128/
Document Type:Conference or Workshop Item (Speech)
Title:An Improved Load Introduction Technique for Dynamic Material Characterisation at Intermediate Strain Rate
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Yoo, SanghyunSanghyun.Yoo (at) dlr.dehttps://orcid.org/0000-0001-6924-1716
Schueler, DominikDLR Institute of Structures and Designhttps://orcid.org/0000-0003-1499-3106
Brodbeck, MarcelDLR Institute of Structures and DesignUNSPECIFIED
Toso, NathalieNathalie.Toso (at) dlr.dehttps://orcid.org/0000-0003-2803-1450
Catalanotti, GiuseppeG.Catalanotti (at) qub.ac.ukhttps://orcid.org/0000-0001-9326-9575
Voggenreiter, HeinzHeinz.Voggenreiter (at) dlr.deUNSPECIFIED
Date:9 May 2018
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:2
DOI :10.3390/ICEM18-05203
Page Range:p. 381
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
Series Name:Proceedings
Status:Published
Keywords:intermediate strain-rate; testing method; slack adaptor
Event Title:The 18th International Conference on Experimental Mechanics
Event Location:Brussels, Belgium
Event Type:international Conference
Event Dates:1–5 July 2018
Organizer:The European society of Experimental Mechanics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials (old)
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design
Deposited By: Yoo, Sanghyun
Deposited On:08 Dec 2020 14:58
Last Modified:20 Jun 2021 15:54

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