Creep behavior of v-notched components

P. Gallo, S.M.J. Razavi, M. Peron, J. Torgersen, F. Berto

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)
89 Downloads (Pure)

Abstract

Geometrical discontinues such as notches play a significant rule in structural integrity of the components, especially when the component is subjected to very severe conditions, such as the high temperature fatigue or creep. In this paper, a generalized form of the existing notch tip creep stress-strain analysis method developed by Nuñez and Glinka, is developed and extended to a wide variety of blunt V-notches. Assuming the generalized Lazzarin-Tovo solution that allows a unified approach to the evaluation of linear elastic stress fields in the vicinity of both cracks and notches is the key in getting the extension to blunt V-notches. Numerous cases have been analysed and the stress fields obtained according to the proposed method were compared with proper finite element data, showing a very good agreement.

Original languageEnglish
Pages (from-to)456-463
Number of pages8
JournalFrattura e Integrita Strutturale
Volume11
Issue number41
DOIs
Publication statusPublished - 2017
MoE publication typeA1 Journal article-refereed

Keywords

  • Creep
  • Strain energy density
  • Stress evaluation
  • Stress fields
  • V-notches

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