Large plastic deformation and initiation of fracture at the tip of a crack in plane strain
- 1 December 1976
- report
- Published by Office of Scientific and Technical Information (OSTI)
Abstract
Topics covered include: finite deformation analysis of crack tip opening in elastic-plastic materials and implications for fracture initiation; path dependence of the J-integral and the role of J as a parameter characterizing the near tip field; separation energy rate for a finite crack growth step from a blunted monotonically loaded crack tip in an elastic-plastic material; finite element calculations of separation energy rate; blunting of a plane strain crack tip into a shape with vertices; and localization of plastic flow at a crack tip as a mechanism for the initiation of plane strain ductile fracture. (GHT)Keywords
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