Assessment of Geometry Correction Functions of Tanker Knuckle Details Based on Fatigue Tests and Finite-Element Analysis

2003 ◽  
Vol 126 (3) ◽  
pp. 220-226 ◽  
Author(s):  
Y. Garbatov ◽  
S. Rudan ◽  
C. Guedes Soares
Keyword(s):  
Finite Element Analysis ◽  
Fatigue Life ◽  
Crack Growth ◽  
Fatigue Test ◽  
Fatigue Tests ◽  
Correction Function ◽  
Element Analysis ◽  
Life Estimation ◽  
Fatigue Life Estimation ◽  
Geometry Correction

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.

Assessment of Geometry Correction Functions of Tanker Knuckle Details Based on Fatigue Tests and Finite Element Analysis

2002 ◽  
Author(s):  
Y. Garbatov ◽  
S. Rudan ◽  
C. Guedes Soares
Keyword(s):  
Finite Element Analysis ◽  
Fatigue Life ◽  
Crack Growth ◽  
Fatigue Test ◽  
Fatigue Tests ◽  
Correction Function ◽  
Element Analysis ◽  
Life Estimation ◽  
Fatigue Life Estimation ◽  
Geometry Correction

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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