10.07.2015 Views

L'approche ONERA pour le cumul des dommages en fatigue ... - SF2M

L'approche ONERA pour le cumul des dommages en fatigue ... - SF2M

L'approche ONERA pour le cumul des dommages en fatigue ... - SF2M

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Cumul linéaire <strong>des</strong> <strong>dommages</strong>exemp<strong>le</strong> : <strong>fatigue</strong> (uniaxia<strong>le</strong>)= F ( σ , σ ) φ(D)dDdNfa1variab<strong>le</strong>s séparab<strong>le</strong>sDσ a1,σ 1σ a2,σ 2Règ<strong>le</strong> de Miner :NNN1+2=f N1 f 21D 10N1N f 114 Séminaire Commission Fatigue <strong>SF2M</strong> – 6 décembre 2012N2N f 21NN f

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