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Question 2: (14 points) La figure montre une poutre fabrique d'un matriau ayant une contrainte de traction admissible de 135 MPa et une contrainte

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Question 2: (14 points) La figure montre une poutre fabrique d'un matriau ayant une contrainte de traction admissible de 135 MPa et une contrainte de compression de 165 MPa. Le couple M est appliqu la poutre dans un plan formant un angle de 45 avec la verticale. a) Dterminez l'emplacement du centrode de la section transversale. b) Calculez les moments d'inertie autour des axes principaux, lz et ly. c) Dterminez le moment interne maximal admissible M qui peut tre appliqu la poutre. M 140 mm 140 mm 45 140 mm 280 mm 140 mm 140 mm 1

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