CUTTING PATTERN CONSIDERING VISCO-ELASTO-PLASTIC CHARACTERISTICS OF MEMBRANE MATERIALS

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Publication year 1999
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Title CUTTING PATTERN CONSIDERING VISCO-ELASTO-PLASTIC CHARACTERISTICS OF MEMBRANE MATERIALS
Author Shiro Kato,Tatsuya Yoshino,Hirokazu Minami
Summary The present study aims to propose a cutting pattering method considering visco-elasto-plastic characteristics and construction process. This study focuses on a plane membrane under a loading process simulating in-situ construction process. The plane membrane sheet is assumed to be fixed on the boundary of 10m by 10m sheet. The method proposed by Nishikawa et al. is adopted to prepare the fundamental basic reduction rates based on which several simulations are performed to find the most desirable cutting pattern through trial and error. In the FEM analysisĀEĆthe tensioning time required for each process is assumed 400 min. After completion of tensioningĀEĆal l the locations for tensioned nodes are kept constant without any movements during a week.