Arc de Chasse Etudiants: Sophie de Rijk, Yannick

Arc de Chasse Etudiants: Sophie de Rijk, Yannick

Arc de Chasse Etudiants: Sophie de Rijk, Yannick Schlaeppi Contexte Arme utilise depuis des milliers danne (- 10000) Se rendre compte des efforts prsents dans un arc. Plus prcisment dans la zone entre le bras et le manche Objectifs de ltude Dtermination des contraintes de von Mises et de cisaillement Dtermination de matriaux alternatifs utilisables Gomtrie environ 1m50 de haut Matriaux utiliss Bois de Shedua (cur) Bois drable (lamelles) Fibre de verre (plaquage) Arc de Chasse Etudiants: Sophie de Rijk, Yannick Schlaeppi

Cas de charge Arc pr-tendu puis tendu Dplacement impos du bras dans les deux cas de charge Concentration de contraintes Critres dvaluation Evaluation des contraintes de cisaillement dans les zones colles Evaluation des contraintes (von Mises) dans la zone de concentration de contrainte Valeurs limites : limite lastique, limite en cisaillement Type danalyse Analyse statique Donnes manquantes / risques Caractristiques mcaniques des diffrents matriaux Modlisation dune gomtrie complexe

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