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http://dx.doi.org/10.3795/KSME-A.2010.34.9.1185

Fatigue Life and Stress Spectrum of Wing Structure of Aircraft  

Kang, Ki-Weon (School of Mechanical and Automobile Engineering, Kunsan Nat'l Univ.)
Koh, Seung-Ki (School of Mechanical and Automobile Engineering, Kunsan Nat'l Univ.)
Choi, Dong-Soo (ROK Air Force, Air Force Logistics Command)
Kim, Tae-Sung (LSCABLE)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.34, no.9, 2010 , pp. 1185-1191 More about this Journal
Abstract
Aged aircraft have several cracks as a results of long-term service, and these cracks affect the safety and decrease the rate of operation of the aircraft. To solve these problems, crack propagation analysis should be performed to determine the service life at fatigue critical location(FCL). It is, however, almost impossible to obtain the stress spectrum, which is crucial for crack propagation analysis of the FCLs of wing structure of aged aircraft. In this study, to analyze the fatigue crack propagation behavior at the FCL of an aged aircraft, first finite element analysis is performed for a 3D geometry model of the aircraft wing structure, which is obtained using CATIA based on the paper drawings. Then, the transfer function and stress-spectrum of the FCL are derived using the load factor data and the FEA results. Finally, the crack propagation rates of the FCL are evaluated using the commercial software, NASGRO 6.0.
Keywords
Fatigue Critical Location; Fatigue Crack Propagation; Finite Element Analysis; Stress-Spectrum;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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