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Mode I Ductile Crack Growth of CT Specimen Under Large Cyclic Loading

[+] Author Affiliations
Kiminobu Hojo

Mitsubishi Heavy Industries, Ltd., Kobe, Japan

Shinichi Kawabata

Ryoyu System Gijutsu, Kobe, Japan

Paper No. PVP2017-65691, pp. V06AT06A003; 7 pages
doi:10.1115/PVP2017-65691
From:
  • ASME 2017 Pressure Vessels and Piping Conference
  • Volume 6A: Materials and Fabrication
  • Waikoloa, Hawaii, USA, July 16–20, 2017
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5799-1
  • Copyright © 2017 by ASME

abstract

Ductile crack growth calculation method under excessive cyclic loading in a fitness for service rule has not been established even in Mode I. The authors simulated ductile crack growth behavior of CT specimens under cyclic loading executed in a committee of the Japan Welding Society. Sensitivity of the used stress-strain curves by monotonic or cyclic loading and the effect of the hardening rule were investigated. For evaluation of the crack growth rate under excessive cyclic loading, the parameter ΔJ was applied and compared with the rate of the JSME rules for FFS.

Copyright © 2017 by ASME

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