Details
| Original language | English |
|---|---|
| Pages (from-to) | 33-41 |
| Number of pages | 9 |
| Journal | Journal of Materials Engineering and Performance |
| Volume | 30 |
| Issue number | 1 |
| Early online date | 4 Jan 2021 |
| Publication status | Published - Jan 2021 |
Abstract
The influence of pre-strain on the very-low-cycle loading behavior as occurring, for example during roller leveling of sheet metals, is not yet fully understood. A key factor in this context is the stiffness of the material and its changes upon processing. To study the general mechanical property changes during low-cycle loading with small amplitudes for a wide variety of metals, sheet samples of mild steel DC01, pure copper CU-DHP and α-titanium are subjected to low-cycle tension–compression tests. The general influences of pre-strain and the applied strain amplitude are investigated regarding material hardening and changes in the elastic properties. It is shown that all tested materials feature changes in the Bauschinger behavior during cycling. The apparent elastic modulus of the materials decreases with increasing accumulated plastic strain, and the evolution depends on the strain amplitude and the pre-strain. For all three materials, changes in technical springback are present and depend on the loading history.
Keywords
- copper, elastic modulus, fatigue, plastic pre-deformation, springback, steel, titanium
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Journal of Materials Engineering and Performance, Vol. 30, No. 1, 01.2021, p. 33-41.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Influence of Pre-strain on Very-Low-Cycle Stress–Strain Response and Springback Behavior
AU - Barienti, Khemais
AU - Klein, Martin
AU - Wackenrohr, Steffen
AU - Herbst, Sebastian
AU - Nürnberger, Florian
AU - Maier, Hans Jürgen
N1 - Funding Information: Financial support of this study by Deutsche Forschungsgemeinschaft (Grant 290141559) is gratefully acknowledged.
PY - 2021/1
Y1 - 2021/1
N2 - The influence of pre-strain on the very-low-cycle loading behavior as occurring, for example during roller leveling of sheet metals, is not yet fully understood. A key factor in this context is the stiffness of the material and its changes upon processing. To study the general mechanical property changes during low-cycle loading with small amplitudes for a wide variety of metals, sheet samples of mild steel DC01, pure copper CU-DHP and α-titanium are subjected to low-cycle tension–compression tests. The general influences of pre-strain and the applied strain amplitude are investigated regarding material hardening and changes in the elastic properties. It is shown that all tested materials feature changes in the Bauschinger behavior during cycling. The apparent elastic modulus of the materials decreases with increasing accumulated plastic strain, and the evolution depends on the strain amplitude and the pre-strain. For all three materials, changes in technical springback are present and depend on the loading history.
AB - The influence of pre-strain on the very-low-cycle loading behavior as occurring, for example during roller leveling of sheet metals, is not yet fully understood. A key factor in this context is the stiffness of the material and its changes upon processing. To study the general mechanical property changes during low-cycle loading with small amplitudes for a wide variety of metals, sheet samples of mild steel DC01, pure copper CU-DHP and α-titanium are subjected to low-cycle tension–compression tests. The general influences of pre-strain and the applied strain amplitude are investigated regarding material hardening and changes in the elastic properties. It is shown that all tested materials feature changes in the Bauschinger behavior during cycling. The apparent elastic modulus of the materials decreases with increasing accumulated plastic strain, and the evolution depends on the strain amplitude and the pre-strain. For all three materials, changes in technical springback are present and depend on the loading history.
KW - copper
KW - elastic modulus
KW - fatigue
KW - plastic pre-deformation
KW - springback
KW - steel
KW - titanium
UR - http://www.scopus.com/inward/record.url?scp=85098940109&partnerID=8YFLogxK
U2 - 10.1007/s11665-020-05399-0
DO - 10.1007/s11665-020-05399-0
M3 - Article
AN - SCOPUS:85098940109
VL - 30
SP - 33
EP - 41
JO - Journal of Materials Engineering and Performance
JF - Journal of Materials Engineering and Performance
SN - 1059-9495
IS - 1
ER -