LOCAL YIELDING AND EXTENSION OF A CRACK UNDER PLANE STRESS

The size of locally yielded regions, the stress distribution, and displacements attending a crack in tension under plane stress have been calculated by extending the work of Dugdale and others. Methods have been developed to take work hardening and unloading into account. The displacements and plastic-zone sizes measured in edgeslotted silicon steel coupons are found to be in agreement with calculations. Conditions under which plane stress or plane strain are dominant in these edge-slotted specimens have also been determined. Finally, Irwin's fracturetoughness parameter and the conditions for crack extension are formulated in terms of basic material parameters consistent with experiment. (Author)

  • Supplemental Notes:
    • Rept. includes Fundamentals of Crack Propagation Resistance; Local Strain Measurement.
  • Corporate Authors:

    Battelle Memorial Institute

    505 King Avenue
    Columbus, OH  United States  43201
  • Authors:
    • Hahn, G T
    • Rosenfield, A R
  • Publication Date: 1964-12

Media Info

  • Pagination: 24 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00327718
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: SSC-165
  • Contract Numbers: NObs88348
  • Files: TRIS
  • Created Date: Feb 18 1981 12:00AM