Application of residual strength models to finite element analysis in fatigue life estimation of a composite wing spar

Author(s):  
Mehdi Hajianmaleki
2003 ◽  
Vol 126 (3) ◽  
pp. 220-226 ◽  
Author(s):  
Y. Garbatov ◽  
S. Rudan ◽  
C. Guedes Soares

The paper analyzes the fatigue crack growth of knuckle detail typical of tankers. An approach for evaluation of the fatigue life based on fracture mechanics is presented, where a Paris-Erdogan crack-growth law is applied. A geometry correction function is determined from fatigue test data. A closed-form equation is proposed for fatigue life estimation. The results obtained from a fatigue test and the calculated fatigue lives are compared.


Author(s):  
Y. Garbatov ◽  
S. Rudan ◽  
C. Guedes Soares

The paper analyses the fatigue crack growth of knuckle detail typical of tankers. An approach for evaluation of the fatigue life based on fracture mechanics is presented, where a Paris-Erdogan crack-growth law is applied. A geometry correction function is determined from fatigue test data. A closed-form equation is proposed for fatigue life estimation. The results obtained from a fatigue test and the calculated fatigue lives are compared.


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