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Li Lun, Xu Jian, Huang Guobing. 外压作用下带初挠度加筋圆柱壳极限载荷及变形研究[J]. Chinese Journal of Ship Research, 2011, 6(6): 13-16. DOI: 10.3969/j.issn.1673-3185.2011.06.003
Citation:
Li Lun, Xu Jian, Huang Guobing. 外压作用下带初挠度加筋圆柱壳极限载荷及变形研究[J]. Chinese Journal of Ship Research, 2011, 6(6): 13-16. DOI: 10.3969/j.issn.1673-3185.2011.06.003
Li Lun, Xu Jian, Huang Guobing. 外压作用下带初挠度加筋圆柱壳极限载荷及变形研究[J]. Chinese Journal of Ship Research, 2011, 6(6): 13-16. DOI: 10.3969/j.issn.1673-3185.2011.06.003
Citation:
Li Lun, Xu Jian, Huang Guobing. 外压作用下带初挠度加筋圆柱壳极限载荷及变形研究[J]. Chinese Journal of Ship Research, 2011, 6(6): 13-16. DOI: 10.3969/j.issn.1673-3185.2011.06.003
外压作用下带初挠度加筋圆柱壳极限载荷及变形研究
Li Lun
,
Xu Jian
,
Huang Guobing
Graphical Abstract
Abstract
Abstract
加筋圆柱壳的承压分析包含极限载荷和后屈曲变形,对这二者进行准确预报是加筋圆柱壳在建造完工后的重要一环。通过实测初挠度建立了反映加筋圆柱壳真实几何形状的有限元模型,在ABAQUS中使用弧长法获得了加筋圆柱壳在外部静水压作用下的极限载荷值,采用弧长与Dynamic/explicit相结合的途径模拟了加筋圆柱壳在外压作用下的后屈曲过程,并获得最终变形。通过与试验结果对比,得出上述数值方法准确可靠,计算结果更加符合客观实际,可以推广到工程应用中。
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