日本語フィールド
著者:宮崎 則幸;萩原 世也;宗像 健題名:軸圧縮荷重を受ける円筒殻のクリープ座屈における分岐現象発表情報:圧力技術 巻: 31 号: 2 ページ: 65 - 73キーワード:概要:In the present study, theoretical and experimental investigation were performed on the creep buckling. Special attention was focussed on the bifurcation behavior during creep deformation.
The finite element method was used to analyze the creep buckling of a perfect circular cylindrical shell without initial imperfection. The number of circumferential waves obtained from this analysis agrees well with that of the experiment. The present experimental investigation shows that the circumferential waves suddenly appear near a bulge. It is also found that there is no correlation between the wave length of the circumferential waves observed at the creep buckling and that of circumferential initial imperfection. The deformation pattern at the bifurcation creep buckling obtained from the analysis resembles that of the experiment. It is concluded from the analysis and the experiment that the circumferential waves observed in the creep buckling experiment are due to bifurcation during creep deformation.抄録:英語フィールド
Author:MIYAZAKI Noriyuki;HAGIHARA Seiya;MUNAKATA TsuyoshiTitle:Bifurcation Behavior of Circular Cylindrical Shell Subjected to Axial Compression in Creep Buckling.Announcement information:Journal of Japan High Pressure Institute Vol: 31 Issue: 2 Page: 65 - 73An abstract:In the present study, theoretical and experimental investigation were performed on the creep buckling. Special attention was focussed on the bifurcation behavior during creep deformation.
The finite element method was used to analyze the creep buckling of a perfect circular cylindrical shell without initial imperfection. The number of circumferential waves obtained from this analysis agrees well with that of the experiment. The present experimental investigation shows that the circumferential waves suddenly appear near a bulge. It is also found that there is no correlation between the wave length of the circumferential waves observed at the creep buckling and that of circumferential initial imperfection. The deformation pattern at the bifurcation creep buckling obtained from the analysis resembles that of the experiment. It is concluded from the analysis and the experiment that the circumferential waves observed in the creep buckling experiment are due to bifurcation during creep deformation.