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Chapitre I Introduction : Objectif de l'étude - OATAO (Open Archive ...

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F<br />

crush<br />

=<br />

n<br />

∑<br />

M<br />

i<br />

*( E * I)<br />

i=<br />

1<br />

Li<br />

*( )<br />

i<br />

K<br />

fi<br />

* ε<br />

fi<br />

* ε<br />

ci<br />

+<br />

M<br />

i<br />

D<br />

t<br />

(Eq. I-9)<br />

avec : i le nombre <strong>de</strong> pli du tube<br />

M : paramètre définissant le mo<strong>de</strong> <strong>de</strong> ruine du pli (0

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