@article{oai:muroran-it.repo.nii.ac.jp:00010579, author = {NISHIZAWA, Tadashi and SAKAMOTO, Hiraku and 坂本, 啓 and OKUMA, Masaaki and FURUYA, Hiroshi and SATO, Yasutaka and OKUIZUMI, Nobukatsu and 奥泉, 信克 and SHIRASAWA, Yoji and MORI, Osamu}, issue = {ists29}, journal = {TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN}, month = {}, note = {application/pdf, This study estimates the effect of creases, or plastic wrinkle lines, on the out-of-plane stiffness of solar sails. A method to simulate the crease effects using reduced-order finite-element (FE) models is proposed, and is applied to a practical solar sail architecture. A detailed crease shape is determined by a geometrically nonlinear FE analysis using a simple model first; the effect of creases is then replaced by beam elements. This method substantially reduces the computational effort required for the FE analysis of a solar sail model. The result suggests the significant impact of creases on membrane's out-of-plane stiffness when the tension level in the membrane is small.}, pages = {Pc_107--Pc_113}, title = {Evaluation of Crease Effects on Out-of-plane Stiffness of Solar Sails}, volume = {12}, year = {2014}, yomi = {サカモト, ヒラク and オクイズミ, ノブカツ} }