STRESS INTENSITY FACTORS FOR ELLIPTICAL CRACKS

The combined use of a solution for an elliptical crack subjected to a polynomial distribution of internal pressure together with a free surface solution for the alternating method is reviewed in order to improve the efficiency of this numerical technique. Numerical differentiation to avoid deriving and computer programming of complex mathematical expressions is discussed. A criterion for maximum grid size for the free surface solution is proposed. Also optimum fittings of the first, second and third order polynomial distributions of internal pressure are considered. (Author)

• Supplemental Notes:
  • Interim Technical Report No. 2.
• Corporate Authors:

  University of Washington, Seattle

  Department of Mechanical Engineering
  Seattle, WA  United States  98105
• Authors:
  • Kobayashi, A S
  • Enetanya, A N
  • Shah, R C
• Publication Date: 1974-3

Media Info

• Pagination: 22 p.

Subject/Index Terms

• TRT Terms: Cracking; Failure; Fracture mechanics; Stresses
• Uncontrolled Terms: Crack propagation; Stress intensity factors
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00057690
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: TR-2
• Contract Numbers: DA-aro-d31-124-73g38
• Files: TRIS
• Created Date: Oct 11 1974 12:00AM