@article{oai:jaxa.repo.nii.ac.jp:00032633,
 author = {平野, 陽一 and 相原, 賢二 and 市田, 和夫 and 砂川, 恵 and HIRANO, Yoichi and AIHARA, Kenji and ICHIDA, Kazuo and SUNAKAWA, Megumi},
 issue = {1_B},
 journal = {東京大学宇宙航空研究所報告},
 month = {Mar},
 note = {楕円筒殼を断面が真円の場合を含め5種類製作し,これを使って圧縮座屈実験を行った.楕円筒殼は座屈後に荷重と縮みの関係において真円筒殼と異なる挙動を示した.又,座屈荷重の実験値を断面の最大曲率半径を半径として持った真円筒殼の座屈応力をもとにした推定値と比較した.その結果,推定値の曲率半径に対する特性は実験値のそれと定性的に一致することが明らかになった.さらに,座屈変形を光学的変位測定法であるモアレ・トポグラフィ法により測定した., Axial buckling tests of elliptical cylindrical shells were conducted. Thirty specimens were used, and their major-minor axis ratio ranged from 1 to 2. The shells were made of rigid-vinyl PVC sheet. The sheet which was cut in size was wrapped around an aluminum mandrel, and the overlap section along a line of maximum curvature was bonded. Then the sheet was heated up to 120℃ in an electrical furnace. At this temperature the sheet softened, shrank, and was maintained in intimate contact with the mandrel. After heat treatment the sheet retained its elliptical shape, when it was removed from the mandrel. Experimental buckling loads were compared with the empirical ones which were obtained by a formula based on maximum radius of curvature. The qualitative agreements between them were good. Load-end shortening curves for shells of various major-minor axis ratios were obtained. It was observed that buckling occurred successively after first buckling, and that load increased above first buckling load for the shells whose major-minor axis ratio was equal to 2. Buckling deformations were measured by miore topography method. By this method equal contour lines of the shells before and after buckling were obtained. Equal contour lines for deformations were derived from the difference between the contour lines of the shells before and after buckling., 資料番号: SA0125974000},
 pages = {403--425},
 title = {<論文>モアレ法による楕円筒殼の座屈変形測定},
 volume = {17},
 year = {1981}
}