A NEW APPROACH FOR CUTTING PATTERN ANALYSIS OF MEMBRANE STRUCTURES BY SIMULTANEOUS CONSIDERATION ON BOTH EQUILIBRIUM CONDITION AND INITIAL CONFIGURATION

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Publication year 1997
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Title A NEW APPROACH FOR CUTTING PATTERN ANALYSIS OF MEMBRANE STRUCTURES BY SIMULTANEOUS CONSIDERATION ON BOTH EQUILIBRIUM CONDITION AND INITIAL CONFIGURATION
Author Takanori Yagi,Hiroshi Ohmori
Summary As membra.ne structures can keep their shapes only through in-plane stress, determination of the objective shapes of membrane structures has to be carried out appropriately by considering physical conditions. BesidesĀEĆproposal of the cutting pattern of membrane materials is also important in order to avoid unexpected wrinkling or creep deformation which itself can also cause the wrinkling after certain period passed from the initial introduction of prestressing. In this paperĀEĆa new approach for determination of the cutting pattern of membrane structures is proposed where the equilibrium state after deformation is simultaneously considered together with the configuration of the cutting pattern as the state of pre-deformation. Utilizing SQP technique for optimization processĀEĆthe finite element analysis is performed for several examples ĀEĆwhere effectiveness of proposed method is clearly shown.