Proceedings Vol. 7 (2001)
INŽENÝRSKÁ MECHANIKA 2001
ENGINEERING MECHANICS 2001
May 14 – 17, 2001, Svratka, Czech Republic
Copyright © 2001 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, Prague
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
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pages 110 - +8p, full text
The rate of a fatigue crack propagating in a vicinity of a V-notch is studied. To assess the influence of the constraint on the rate of the propagation, two parameter constraint based linear elastic fracture mechanics is used. The corresponding values of the T-stress are calculated and values of the effective stress intensity factor K'ff controlling the rate of a crack propagation are estimated as a function of the V-notch opening angle. The results obtained are compared with those for a crack emanatingfrom nonsingular U- notch concentrator.
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