@article{oai:jaxa.repo.nii.ac.jp:00022512, author = {Nishizawa, Tadashi and Sakamoto, Hiraku and Okuma, Masaaki and Furuya, Hiroshi and Sato, Yasutaka and Okuizumi, Nobukatsu and Shirasawa, Yoji and Mori, Osamu}, issue = {ists29}, journal = {Transactions of the Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan}, month = {Dec}, note = {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., 資料番号: PA1510010000}, pages = {Pc_107--Pc_113}, title = {Evaluation of Crease Effects on Out-of-plane Stiffness of Solar Sails}, volume = {12}, year = {2014} }