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Johnson-Cook Strength Model Constants for VascoMax 300 and 1080 Steels

Journal Article · · AIP Conference Proceedings
DOI:https://doi.org/10.1063/1.2263420· OSTI ID:20875759
; ;  [1]; ;  [2]
  1. Department of Aeronautics and Astronautics, Air Force Institute of Technology, WPAFB, OH 45433 (United States)
  2. 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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