Johnson-Cook Strength Model Constants for VascoMax 300 and 1080 Steels
Journal Article
·
· AIP Conference Proceedings
- Department of Aeronautics and Astronautics, Air Force Institute of Technology, WPAFB, OH 45433 (United States)
- University of Dayton Research Institute, Dayton, OH 45469-0182 (United States)
High strength steels, VascoMax 300 and 1080, are characterized under tension at strain rates of {approx}1/s, {approx}500/s, {approx}1000/s, and {approx}1500/s and at high temperatures using the quasi-static and split Hopkinson bar techniques. The data on 1080 steel exhibited a typical strain hardening response, whereas Vasco-Max 300 steel showed diminishing flow stress beyond yielding because of localized necking in gauge section of the tested specimens. The tension data are analyzed to determine the Johnson-Cook (J-C) strength model constants for the two steels. The flow stress values for VascoMax are adjusted to account for necking, and the corrected J-C model is developed.
- OSTI ID:
- 20875759
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 845; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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