A simple method of estimating the maximum normal stress and plastic zone size at a shallow notch

San-Qiang Shi, M. P. Puls

Research output: Journal article publicationJournal articleAcademic researchpeer-review

10 Citations (Scopus)


The maximum normal tensile stress at a shallow notch is used elsewhere to define a threshold level for the initiation of delayed hydride cracking at blunt notches in the pressure tubes of CANDUTMnuclear reactors. A simple method, based on a modified Neuber's solution, combined with the slip-line theory, is proposed to estimate the maximum tensile stress and the plastic zone size at a shallow notch under plane strain conditions. The applicability of the method is expected to be limited to non-workhardening materials having a high Young's modulus. Good agreement is found between the results of this simple method and finite element calculations applied to a cold-worked Zr-2·5Nb pressure tube material.
Original languageEnglish
Pages (from-to)67-71
Number of pages5
JournalInternational Journal of Pressure Vessels and Piping
Issue number1
Publication statusPublished - 1 Jan 1995
Externally publishedYes

ASJC Scopus subject areas

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

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