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Cours-Proprietes-mecaniques-des-materiaux

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1.2.2- DEFORMATION DE CISAILLEMENT<br />

L<br />

ττττ<br />

ττττ<br />

Figure 6<br />

dw<br />

θθθθ<br />

Après application de la contrainte τ (Figure 6)<br />

le cube est déformé en cisaillement γ<br />

γ = dw / L= tan θ<br />

Si les déformations sont faibles<br />

En première approximation<br />

γ = θ angle de cisaillement

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