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Pr. C. Gauthier - GFP

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4. Vernis AR : fissuration<br />

Hypothèse classique :<br />

Ft<br />

Fn<br />

Mais fissuration sous la pointe !<br />

Origine ? Déformation max<br />

dans le contact en lieu avec<br />

plasticité<br />

Communément admis :<br />

σ xx arrière du contact

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