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STRESS INTENSITY FACTORS FOR CORNER CRACKS AT A HOLE BY A 3‐D WEIGHT FUNCTION METHOD WITH STRESSES FROM THE FINITE ELEMENT METHOD
Author(s) -
Zhao W.,
Newman J. C.,
Sutton M. A.,
Wu X. R.,
Shivakumar K. N.
Publication year - 1997
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/j.1460-2695.1997.tb01485.x
Subject(s) - stress intensity factor , finite element method , wedge (geometry) , weight function , structural engineering , stress (linguistics) , materials science , stress concentration , bending , tension (geology) , range (aeronautics) , geometry , composite material , mathematics , mathematical analysis , engineering , ultimate tensile strength , linguistics , philosophy
— Stress intensity factors for quarter‐elliptical corner cracks emanating from a circular hole are determined using a 3‐D weight function method combined with a 3‐D finite element method. The 3‐D finite element method is used to analyze uncracked configurations and provide stress distributions in the region where a crack is likely to occur. Using this stress distribution as input, the 3‐D weight function method is used to determine stress intensity factors. Three different loading conditions, i.e. remote tension, remote bending and wedge loading, are considered for a wide range of geometrical parameters. The significance of using 3‐D uncracked stress distributions is studied. Comparisons are made with solutions available in the literature.