ELASTIC-PLASTIC ANALYSIS OF THICK-WALLED PRESSURE VESSELS WITH SHARP DISCONTINUITIES

Application of special isoparametric finite elements is presented for the elastic-plastic analysis of shells of revolution. General isoparametric elements are selected which, in the form of a layered system, are capable of representing a solid of revolution. The customary Kirchhoff-Love hypothesis is not invoked and solutions therefore apply both to thin and thick shells of revolution. Sharp discontinuities in geometry, circumferential ribs and/or grooves, as well as cellular walls may be studied. A special feature is the development of an element permitting sliding at the element interfaces with or without friction. The illustrative examples include a pressure vessel with a circumferential crack in the wall thickness, and a circular plate consisting of two disks which can slide along their interface. The solutions are limited to axially symmetric problems. Flow theory of plasticity is used in the inelastic regions.

  • Availability:
  • Supplemental Notes:
    • Presented at the National Congress on Pressure Vessels and Piping (1st) held in San Francisco, California, May 10-12 1971, American Society of Mechanical Engineers, Paper no ASME-71-PVP-23, also published in the Journal of Engineering for Industry, p1016-1020 Nov. 71
  • Corporate Authors:

    University of California, Berkeley

    Berkeley, CA  USA  94720
  • Authors:
    • Larsen, K
    • Popov, P
  • Publication Date: 1971-2-4

Media Info

  • Pagination: 6 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00035656
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • ISBN: 3
  • Report/Paper Numbers: AROD-8284:4-A Reprint
  • Contract Numbers: DAHC04-69-C-0037
  • Files: TRIS
  • Created Date: Oct 27 1973 12:00AM