LOCAL YIELDING AND EXTENSION OF A CRACK UNDER PLANE STRESS.
Abstract
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1964
- Accession Number
- AD0610039
Entities
People
- A. R. Rosenfield
- G. T. Hahn
Organizations
- Battelle Memorial Institute