FINITE ELEMENT FRACTURE MECHANICS ANALYSIS OF TWO-DIMENSIONAL AND AXISYMMETRIC ELASTIC AND ELASTIC-PLASTIC CRACKED STRUCTURES

Improved methods for calculating fracture mechanics parameters at critical fatigue and fracture prone areas of complex structural details are summarized. This work is a part of a broader effort aimed at the development of analytical methods for fatigue and fracture analysis of submarine hulls. An approach based on the combination of high order isoparametric finite elements with a singular crack tip element is described and applied to the prediction of elastic stress intensity factor for Mode I or combined Modes I and II crack behavior. Examples of the application of the methods to two-dimensional and axisymmetric problems are presented along with recommendations for future studies and applications.

  • Corporate Authors:

    David Taylor Naval Ship R&D Center

    Bethesda, MD  United States  20084

    Naval Ship Systems Command

    Washington, DC  United States 
  • Authors:
    • Hilton, P D
    • Gifford, LNJ
    • Lomacky, O
  • Publication Date: 1974-11

Media Info

  • Pagination: 119 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00090760
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NSRDC-4493 R&D Rpt.
  • Files: TRIS
  • Created Date: Jun 26 1975 12:00AM