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Elastic stress concentration at radial crossholes in pressurised thick cylinders

Comlekci, T. and Mackenzie, D. and Hamilton, R. and Wood, J. (2007) Elastic stress concentration at radial crossholes in pressurised thick cylinders. Journal of Strain Analysis for Engineering Design, 42 (6). pp. 461-468. ISSN 0309-3247

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    Abstract

    Results of a parametric finite element analysis investigation of stress concentration at radial crossholes in pressurized cylinders are presented in numerical and graphical form. The analysis shows that the location of maximum stress does not generally occur at the junction between the bores, as is commonly supposed, but at some small distance up the crosshole from the junction. Maximum stress concentration factors (SCFs) are defined on the basis of the maximum principal stress, von Mises equivalent stress, and stress intensity. Three-dimensional plots of the SCF against the cylinder radius ratio b/a and the crosshole-to-main-bore-radius ratio c/a are presented. The SCFs were found to vary across the range of geometries considered with local minima identified within the parameter range in most cases. The results therefore allow designers to select optimum b/a and c/a ratios to minimize stress concentration in real problems.

    Item type: Article
    ID code: 5068
    Keywords: stress concentration factor, thick pressure vessels, crossholes, Mechanical engineering and machinery, Mechanical Engineering, Mechanics of Materials, Analysis
    Subjects: Technology > Mechanical engineering and machinery
    Department: Faculty of Engineering > Mechanical and Aerospace Engineering
    Related URLs:
      Depositing user: Strathprints Administrator
      Date Deposited: 07 Jan 2008
      Last modified: 04 Sep 2014 23:21
      URI: http://strathprints.strath.ac.uk/id/eprint/5068

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