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Fracture Mechanics of cracks originating from holes treated for notch stress relieving
Author(s) -
Mattheck C.,
Burkhardt S.
Publication year - 1987
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.19870180405
Subject(s) - stress intensity factor , axial symmetry , materials science , stress (linguistics) , structural engineering , stress concentration , finite element method , fracture (geology) , composite material , ultimate tensile strength , cylinder stress , fracture mechanics , engineering , linguistics , philosophy
A tensile plate with a circular hole is investigated. The notch stresses are calculated, for an optimum notch arrangement as well as cold expansion of the notch. The stress‐intensity factor is calculated for a crack originating at a single circular hole surrounded by two axially arranged circular stress‐relieving notches. Furthermore, the influence of cold expansion of the main notch, which is to be relieved, and of the combination of cold expansion and stress‐relieving notches on the stress intensity factor is investigated. The weight‐function is given for all the cases above. It has been computed with good approximation by a Finite‐Element‐Method.