The solution of axisymmetric problems near singular points and computation of stress intensity factors

Zohar Yosibash*, Barna Szabó

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The computation of the stress intensity factors for axially symmetric domains, in the vicinity of singular points in the framework of linear elastostatics, is presented. It is shown that the decomposition of the solution in the neighborhood of any singular point, in an axisymmetric domain, is identical to the decomposition corresponding to plane strain condition, and an extraction vector, to be used in conjunction with the contour integral method and the p-version of the finite element method, is developed for crack singularities. Although the contour integral is shown to be path dependent for axisymmetric 2-D domains, in the limiting case it is valid for the computation of the crack stress intensity factors. Numerical examples support our analysis, extending the application of the superconvergent contour integral in conjunction with the p-version of the finite element method to the axisymmetric crack case.

Original languageEnglish
Pages (from-to)115-129
Number of pages15
JournalFinite Elements in Analysis and Design
Volume19
Issue number1-2
DOIs
StatePublished - Feb 1995
Externally publishedYes

Funding

FundersFunder number
Air Force Office of Scientific ResearchF49620-93-1-0173

    Fingerprint

    Dive into the research topics of 'The solution of axisymmetric problems near singular points and computation of stress intensity factors'. Together they form a unique fingerprint.

    Cite this