Large plastic deformation and initiation of fracture at the tip of a crack in plane strain

Technical Report · Wed Dec 01 00:00:00 EST 1976

DOI:https://doi.org/10.2172/7119153· OSTI ID:7119153

McMeeking, R M

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)

• Research Organization: Brown Univ., Providence, RI (USA). Div. of Engineering
• Sponsoring Organization: US Energy Research and Development Administration (ERDA)
• DOE Contract Number: EY-76-S-02-3084.A001
• OSTI ID: 7119153
• Report Number(s): COO-3084-48
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CRACKING
MATHEMATICAL MODELS
DEFORMATION
MATERIALS
CRACKS
ELASTICITY
PLASTICITY
STRAINS
CHEMICAL REACTIONS
DECOMPOSITION
MECHANICAL PROPERTIES
PYROLYSIS
TENSILE PROPERTIES
THERMOCHEMICAL PROCESSES
360000* - Materials