Creep failure simulations of 316H at 550°C: Part I - A method and validation

Chang Sik Oh, Nak Hyun Kim, Yun Jae Kim, Catrin Davies, Kamran Nikbin, David Dean

研究成果: Article査読

77 被引用数 (Scopus)

抄録

This paper proposes a method to simulate creep failure using finite element damage analysis. The creep damage model is based on the creep ductility exhaustion concept, and incremental damage is defined by the ratio of incremental creep strain and multi-axial creep ductility. A simple linear damage summation rule is applied and, when accumulated damage becomes unity, element stresses are reduced to zero to simulate progressive crack growth. For validation, simulated results are compared with experimental data for a compact tension specimen of 316H at 550. °C. Effects of the mesh size and scatter in uniaxial ductility are also investigated.

本文言語English
ページ(範囲)2966-2977
ページ数12
ジャーナルEngineering Fracture Mechanics
78
17
DOI
出版ステータスPublished - 2011 12月
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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