Stress intensity factors of embedded elliptical cracks and an assessment of the ASME XI defect recharacterisation criteria

H. Noguchi, R. A. Smith, J. J. Carruthers, M. D. Gilchrist

研究成果: ジャーナルへの寄稿記事

4 引用 (Scopus)

抄録

This paper considers aspects related to the calculation of the stress intensity factors of planar embedded defects in a solid under tension. The determination of stress intensity factor solutions using a modified body force method is described, this technique having certain advantages over existing finite element, boundary element and ordinary body force methods. Furthermore, comprehensive modified body force solutions are presented and discussed for a range of elliptical defect geometries. These solutions have then been used to assess the conservation of the recharacterisation procedure for defects of complex geometry described in Section XI of the ASME Boiler and Pressure Vessel Code. Maximum stress intensity factor values calculated using both the modified body force method and the ASME XI rules in conjunction with standard solutions are compared and contrasted. The results of this analysis show that, by and large. ASME XI is conservative and hence safe. However, geometries for which ASME XI provides non-conservative estimates have been encountered and, in certain circumstances, this may be a cause for concern.

元の言語英語
ページ(範囲)69-76
ページ数8
ジャーナルInternational Journal of Pressure Vessels and Piping
70
発行部数1
DOI
出版物ステータス出版済み - 1 1997

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Stress intensity factors
Cracks
Defects
Geometry
Insulator Elements
Pressure vessel codes
Boilers
Conservation

All Science Journal Classification (ASJC) codes

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

これを引用

Stress intensity factors of embedded elliptical cracks and an assessment of the ASME XI defect recharacterisation criteria. / Noguchi, H.; Smith, R. A.; Carruthers, J. J.; Gilchrist, M. D.

:: International Journal of Pressure Vessels and Piping, 巻 70, 番号 1, 01.1997, p. 69-76.

研究成果: ジャーナルへの寄稿記事

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