Fracture assessments with elastic follow-up for combined primary and secondary loadings: Part 2: Numerical validation

Hyun Jae Lee, Yun Jae Kim, R. A. Ainsworth, Chang Young Oh

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This paper presents comparisons of finite element (FE) results with the J estimation equations proposed in Part 1 for treating fracture under combined primary and secondary loadings. The FE analyses are performed for a pipe with a circumferential internal surface crack subjected to axial tension combined with thermal loading. The crack depth and length, the relative magnitude of axial tension and thermal loadings, loading sequence and material properties are systematically varied. Based on the FE results, the applicability of the proposed equations in Part 1 is discussed and new estimation equations obtained by modifying the existing equations are proposed and validated.

Original languageEnglish
Article number106796
JournalEngineering Fracture Mechanics
Volume224
DOIs
Publication statusPublished - 2020 Feb 1
Externally publishedYes

Keywords

  • Elastic follow-up
  • Failure assessment diagram
  • Secondary loading

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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