STRESS DISPLACEMENT, LINE INTEGRAL AND CLOSURE ENERGY DETERMINATIONS OF CRACK TIP STRESS INTENSITY FACTORS

Finite element and other methods for the determination of the stress intensity factor at the tip of a crack are reviewed. These methods include those which involve the determination of: (1) the normal stresses in the plane of the crack beyond the crack tip; (2) the crack opening displacements; (3) Rice's J integral; and (4) the crack closure energy. All the methods are applied to the same cracked plate and a comparison study of the results shows them to be consistent and within normal engineering accuracy requirements of plus minus 3%. The usefulness of the crack closure energy method in nonlinear elastic-plastic situations is discussed.

• Corporate Authors:

  Applied Science Publishers Limited

  22 Rippleside Commercial Estate, Ripple Road
  Barking, Essex,   England 
• Authors:
  • Kfouri, A P
  • Miller, K J
• Publication Date: 1974-7

Media Info

• Features: References;
• Pagination: p. 179-191
• Serial:
  • International Journal of Pressure Vessels & Piping
  • Volume: 2
  • Issue Number: 3
  • Publisher: Applied Science Publishers Limited

Subject/Index Terms

• TRT Terms: Cracking; Finite element method; Fracture mechanics; Measurement; Stresses
• Uncontrolled Terms: Crack propagation; Stress intensity factors
• Old TRIS Terms: Crack opening measurement
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00084560
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: May 19 1975 12:00AM