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Identification des modules équivalents d'une poutre composite à ...

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123<br />

Fig. V.2.12<br />

Impe'dance <strong>d'une</strong><br />

<strong>poutre</strong> de Timoshenko:<br />

E*.224E10(1+.1i)<br />

N/m2<br />

*=.448oq(1+. Ii)<br />

N/m2<br />

masse densité<br />

=.5E4 Kg/m3<br />

r/a. 04<br />

a.05 m.<br />

Fig. V.2.13<br />

Impédance <strong>d'une</strong><br />

<strong>poutre</strong> de Timoshenko:<br />

E*.224E10(1+.1J)<br />

N/m2<br />

G*.112E0q(1+.1i)<br />

M/m2<br />

masse densité<br />

.5E4 Kg/m3<br />

r/a=. 02<br />

a.10 m.<br />

-o<br />

1E+01 -<br />

o<br />

M 1E+00<br />

a)<br />

- lE-01 -<br />

1 E-02 -

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