| Issue |
EPJ Web of Conferences
Volume 26, 2012
DYMAT 2012 - 10th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
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|---|---|---|
| Article Number | 05003 | |
| Number of page(s) | 6 | |
| Section | Industrial Applications | |
| DOI | https://doi.org/10.1051/epjconf/20122605003 | |
| Published online | 31 August 2012 | |
https://doi.org/10.1051/epjconf/20122605003
Strain rate behaviour of multi-phase and complex-phase steels for automotive applications
1 DynaMat Laboratory, University of Applied Sciences of Southern Switzerland, 6952 Canobbio, Switzerland
2 Department of Applied Mechanics, Indian Institute of Technology Delhi, New Delhi-110016, India
A combined study on the mechanical behaviour of multi-phase 800 high yield strength steel (MP800HY) and complex-phase 800 steel (CP800) is carried out under tensile loads in the strain rate range from 0.001s−1 to 750s−1. Quasi-static (0.001s−1) tests are performed on electromechanical machine, whereas, medium (5s−1 and 25s−1) and high strain rate (250s−1, 500s−1 and 750s−1) experiments are conducted on hydro-pneumatic machine (HPM) and modified Hopkinson bar (MHB) setup respectively. The thermal softening behaviors of the materials are investigated at quasi-static condition and the materials’ m-parameters of the existing Johnson-Cook model are imposed in authors’ previous work. Thereafter, the predicted flow stress by Johnson-Cook model has been compared with the experimental results.
© Owned by the authors, published by EDP Sciences, 2012