Journal of Siberian Federal University. Engineering & Technologies / Surface Fatigue Crack Growth Simulation Based on the Finite-Element Aided Damage Accumulation Procedure

Full text (.pdf)
Issue
Journal of Siberian Federal University. Engineering & Technologies. 2015 8 (7)
Authors
Guchinsky, Ruslan V.; Petinov, Sergey V.
Contact information
Guchinsky, Ruslan V.:Institute for Problems of Mechanical Engineering RAS 61 V.O., Bolshoj pr., St. Petersburg, 199178, Russia; Peter the Great St. Petersburg Polytechnic University 29 Polytechnicheskaya Str., St. Petersburg, 195251, Russia; E-mail: ; Petinov, Sergey V.:Institute for Problems of Mechanical Engineering RAS 61 V.O., Bolshoj pr., St. Petersburg, 199178, Russia; Peter the Great St. Petersburg Polytechnic University 29 Polytechnicheskaya Str., St. Petersburg, 195251, Russia
Keywords
quarter-elliptic crack; crack growth modeling; fatigue crack; fatigue damage accumulation
Abstract

Presented is an approach addressed to evaluation of the surface and three-dimensional fatigue crack growth based on finite-element aided modeling of the damage accumulation. The approach incorporating the Strain-life criterion for fatigue failure and lumped cyclic stress-strain curve of material, may be advantageous compared to currently employed linear elastic fracture mechanics. It provides fatigue analysis without subdivision into the crack initiation and propagation; it allows naturally considering material plasticity and the crack opening effect. The approach application is illustrated in example of fatigue crack extensions from circular hole in a cyclically loaded plate. The results of simulation are in good agreement with experimental data

Pages
890-900
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/20042

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