Original title: Simulation of fatigue crack propagation in the wing main spar flange
Authors: Augustin, Petr
Document type: Papers
Language: eng
Publisher: Vysoké učení technické v Brně, Fakulta strojního inženýrství
Abstract: Simulation of fatigue crack growth in the bottom flange of twin turboprop commuter aircraft wing spar is described in this paper. Analysed crack propagation scenario represents real wing full-scale fatigue test failure. Computational model of bottom flange was prepared using three-dimensional fracture mechanics software FRANC3D. Calculation of crack growth under the variable amplitude loading was performed in AFGROW code using the NASGRO equation and Wheeler retardation model. It was verified with the results of wing spar specimen fatigue test and fractograpic analysis of fatigue fracture from this experiment. Computational model was applied in the prognostic algorithm of structure health monitoring system.
Keywords: BEM; fatigue crack growth; fatigue test; SHM; wing spar
Host item entry: 13th Research and Education in Aircraft Design: Conference proceedings, ISBN 978-80-214-5696-9

Institution: Brno University of Technology (web)
Document availability information: Fulltext is available in the Brno University of Technology Digital Library.
Original record: http://hdl.handle.net/11012/137295

Permalink: http://www.nusl.cz/ntk/nusl-392374


The record appears in these collections:
Universities and colleges > Public universities > Brno University of Technology
Conference materials > Papers