Next Article in Journal
Proposal to Standardize Fatigue Delamination Growth Tests Using Double Cantilever Beam Specimens without Fibre Bridging
Previous Article in Journal
Mechanical Characterization of Compact Basalt by Using SHPB Device
Article Menu
Issue 8 (ICEM 2018) cover image

Article Versions

Export Article

Open AccessProceedings
Proceedings 2018, 2(8), 381; https://doi.org/10.3390/ICEM18-05203

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

1
Institute of Structures and Design, German Aerospace Center, Pfaffenwaldring 38-40, 70569 Stuttgart, Germany
2
Advanced Composites Research Group (ACRG), School of Mechanical and Aerospace Engineering, Queen’s University Belfast, University Road, Belfast BT7 1NN, UK
Presented at the 18th International Conference on Experimental Mechanics, Brussels, Belgium, 1–5 July 2018.
*
Author to whom correspondence should be addressed.
Published: 9 May 2018
PDF [1187 KB, uploaded 29 May 2018]

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.
Keywords: intermediate strain-rate; testing method; slack adaptor intermediate strain-rate; testing method; slack adaptor
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Yoo, S.; Schueler, D.; Brodbeck, M.; Toso, N.; Catalanotti, G.; Voggenreiter, H. An Improved Load Introduction Technique for Dynamic Material Characterisation at Intermediate Strain Rate. Proceedings 2018, 2, 381.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Proceedings EISSN 2504-3900 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top