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Optimized crenellation designs for fatigue life improvement of metallic airframe structures
Citation Link: https://doi.org/10.15480/882.1393
Publikationstyp
Doctoral Thesis
Date Issued
2017
Sprache
English
Author(s)
Advisor
Referee
Title Granting Institution
Technische Universität Hamburg-Harburg
Place of Title Granting Institution
Hamburg
Examination Date
2017-05-24
TORE-DOI
Fatigue of airframe structures is a critical concern for the safety of aircraft. Serious accidents due to the accumulation of fatigue damages in airframes are by no means rare cases in history. Nowadays to ensure the structural integrity of the aircraft periodic inspections are performed on the airframe structure to detect and repair fatigue cracks timely. The prescribed inspection frequency is determined by the speed of fatigue crack growth from an initial detectable length to a maximum allowable length. Therefore, there is a constant driving force in the aerospace industry to improve the fatigue crack resistance of airframe structures by different techniques to reduce the inspection frequency and thus the maintenance cost yet without any compromise on the safety issue.
Crenellation is such a promising fatigue crack retardation concept developed in recent years, in which the thickness of the fuselage skin is systematically varied ...
Crenellation is such a promising fatigue crack retardation concept developed in recent years, in which the thickness of the fuselage skin is systematically varied ...
Subjects
Fatigue life improvement
Fuselage skin
Influence of material texture
Geometrical optimization
Genetic algorithm
Residual stress
DDC Class
620: Ingenieurwissenschaften
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Dissertation_Jin Lu.pdf
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