Authors: Boljanović, Slobodanka 
Maksimović, Stevan
Title: Fatigue damage analysis of wing-fuselage attachment lug
Journal: Procedia Structural Integrity
Volume: 5
First page: 801
Last page: 808
Conference: 2nd International Conference on Structural Integrity, ICSI 2017, 4-7 September 2017, Funchal, Madeira, Portugal
Issue Date: 1-Jan-2017
Rank: M33
ISSN: 2452-3216
DOI: 10.1016/j.prostr.2017.07.053
In the present paper, the fatigue behavior of failure critical pin-loaded lug with the through-the-thickness crack at a hole is analyzed. Such an investigation examines the stress analysis and the residual life estimation through a computational model here proposed in which suitable fracture mechanics concepts are employed. Hence, the stress ratio dependence crack growth model is taken into account to assess the fatigue strength of damaged lug. Further, in order to calculate the stress intensity factor, fracture mechanics based analytical and numerical approaches are applied. Finally, to demonstrate the compatibility of developed model, relevant experimental data are used. Such crack growth observations show a fairly good correlation with obtained failure assessments.
Keywords: Fatigue failure | pin-loaded lug | residual life estimation | stress analysis
Publisher: Elsevier
Project: Dynamics of hybrid systems with complex structures. Mechanics of materials. 

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