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Finite Element Damage Simulations for Creep Crack Growth of SS316H With Different Geometries

[+] Author Affiliations
Chang-Sik Oh, Nak-Hyun Kim, Han-Sang Lee, Yun-Jae Kim

Korea University, Seoul, Korea

Paper No. PVP2011-57467, pp. 553-558; 6 pages
  • ASME 2011 Pressure Vessels and Piping Conference
  • Volume 3: Design and Analysis
  • Baltimore, Maryland, USA, July 17–21, 2011
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-4453-3
  • Copyright © 2011 by ASME


In this paper, creep crack growth simulations were performed based on finite element (FE) damage simulations for several types of test specimens such as C(T), CS(T), SEN(T), M(T) and SEN(B). The Graham-Walles creep law was adopted to describe all three phases of creep. The Creep parameters were obtained from uni-axial creep test results of SS316H at 550°C. Damage model was also included based on creep ductility exhaustion concept, which is defined as the ratio of creep strain to the multi-axial creep ductility. Creep crack growth rates resulting from FE simulations were compared with the experimental data.

Copyright © 2011 by ASME



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