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Cours-Proprietes-mecaniques-des-materiaux

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Plan de<br />

glissement<br />

discontinu<br />

Grain A joint Grain B<br />

Franchissement énergétique du joint difficile<br />

Il faut appliquer une contrainte de plus en plus élevée pour qu’elles<br />

franchissent ces joints et se propagent aux grains voisins.

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