European FITNET Fitness-for-Service Procedure ... - Congrex
European FITNET Fitness-for-Service Procedure ... - Congrex
European FITNET Fitness-for-Service Procedure ... - Congrex
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Material related parameters<br />
(experiment):<br />
• Tensile properties<br />
• Fracture toughness (R-curve)<br />
• Mis-match ratio (M)<br />
a<br />
W<br />
M=YSWM / YSBM Mis-match ratio<br />
<strong>FITNET</strong> FFS: Section 6 Fracture<br />
Assessment <strong>for</strong> Postulated or Real Flaw<br />
<strong>FITNET</strong> FFS<br />
Fracture Analysis<br />
Prediction of critical structural condition:<br />
• stress level & max. load<br />
• critical crack size<br />
• min. fracture toughness<br />
Component related parameters<br />
(handbook, FEM):<br />
• Stress analysis, Flaw size<br />
• K-factor and plastic limit load soln<br />
ESA/ESTEC Workshop on Fracture Control, Noordwijk, NL, 9-10 Feb. 2009 M. Kocak, V. Uz, GKSS 20
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