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Abstract
This work deals with the high strain-rate characterization of paper under uniaxial tension using a Split Hopkinson test bench. An aluminum bar system featuring a highly sensitive hollow transmission bar was used. Paper tests were performed in a strain-rate range between approximately 60 s−1 and 210 s−1. The experimental tests showed that the breaking strength appears to decrease with increasing strain-rate. To verify these results, a digital twin of both the paper specimen and the entire test rig was created in an explicit Finite Element method environment. The numerical model was then used to perform a parameter study with different types of transmission bars. It was shown that the system is quite sensitive to additional masses caused by the specimen fixtures, as well as to drastic reductions in the cross section of the transmission bar. As a result, the transmitted measuring signal can be distorted and may need to be corrected using the digital twin.
Original language | English |
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Article number | 135498 |
Journal | Materials Letters |
Volume | 355 |
Early online date | 30 Oct 2023 |
DOIs | |
Publication status | Published - Jan 2024 |
Keywords
- Hollow transmission bar
- Low impedance
- Numerical simulation
- Paper
- Split Hopkinson tension bar
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
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Dive into the research topics of 'On the development of a high strain-rate tensile testing method for thin low-impedance materials'. Together they form a unique fingerprint.Activities
- 1 Talk at conference or symposium
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On the development of a high strain-rate tensile testing method for thin low-impedance materials
Georg Baumann (Speaker), Caterina Marina Czibula (Contributor), Ulrich Hirn (Contributor) & Florian Feist (Contributor)
27 Nov 2023 → 29 Nov 2023Activity: Talk or presentation › Talk at conference or symposium › Science to science