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WEIGHTED AVERAGED STRESS INTENSITY FACTORS OF CIRCULAR‐FRONTED CRACKS IN CYLINDRICAL BARS
Author(s) -
CASPERS M.,
Mattheck C.
Publication year - 1987
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.1460-2695.1987.tb00460.x
Subject(s) - stress intensity factor , cylinder , weight function , crack tip opening displacement , structural engineering , materials science , perpendicular , finite element method , bar (unit) , enhanced data rates for gsm evolution , displacement (psychology) , crack closure , geometry , stress (linguistics) , surface (topology) , tension (geology) , mechanics , composite material , mathematics , fracture mechanics , engineering , geology , mathematical analysis , physics , compression (physics) , philosophy , psychotherapist , linguistics , oceanography , psychology , telecommunications
Stress intensity factors are calculated in weighted average at the surface and the deepest point of a circular‐fronted surface crack in a cylindrical bar by use of the weight function method. A wide range of various crack shapes are studied, from a nearly straight‐fronted edge crack to a semi‐circular crack front. Use of the weight function method requires that the crack opening displacement field of a reference load has to be known. It was obtained by 3‐D finite element analysis. Results are presented for the cracked cylinder subjected to a constant stress (tension) and a linear stress distribution acting perpendicular to the crack faces and they are compared with values found by other investigators.