[1]谭福颖,乔玲,韩晓林.基于广义梁理论的薄壁圆柱壳稳定性分析[J].东南大学学报(自然科学版),2013,43(5):1062-1067.[doi:10.3969/j.issn.1001-0505.2013.05.027]
　Tan Fuying,Qiao Ling,Han Xiaolin.Stability analysis of thin-walled cylindrical shells based on generalised beam theory[J].Journal of Southeast University (Natural Science Edition),2013,43(5):1062-1067.[doi:10.3969/j.issn.1001-0505.2013.05.027]
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基于广义梁理论的薄壁圆柱壳稳定性分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
43
期数:
2013年第5期
页码:
1062-1067
栏目:
其他
出版日期:
2013-09-20

文章信息/Info

Title:
Stability analysis of thin-walled cylindrical shells based on generalised beam theory
作者:
谭福颖; 乔玲; 韩晓林
东南大学土木工程学院, 南京 210096; 东南大学江苏省工程力学分析重点实验室, 南京 210096
Author(s):
Tan Fuying;  Qiao Ling;  Han Xiaolin
School of Civil Engineering, Southeast University, Nanjing 210096, China
Jiangsu Key Laboratory of Engineering Mechanics, Southeast University, Nanjing 210096, China
关键词:
薄壁圆柱壳;  广义梁理论;  临界应力;  稳定性分析
Keywords:
thin-walled cylindrical shell;  generalised beam theory;  critical stress;  stability analysis
分类号:
V214
DOI:
10.3969/j.issn.1001-0505.2013.05.027
摘要:
将广泛应用于薄壁棱柱形构件稳定性研究的广义梁理论推广到薄壁圆形截面柱壳的稳定性分析中,采用正交对称形式的位移函数,并考虑截面畸变翘曲的影响. 由能量法推导出临界应力表达式,提出了一种用于薄壁圆形截面的柱壳稳定性分析的新方法,并进一步研究了不同长细比薄壁圆柱壳的临界屈曲应力与轴长及壁厚之间的关系.研究表明:随圆柱壳轴长的增大,临界应力整体呈波动下降趋势,其中存在的局部极小值点为对应于不同屈曲模态下的临界应力;随着圆柱壳壁厚的增大,临界应力呈增大趋势.上述方法的分析结果与有限元方法模拟结果及文献中结果对比均具有较好的一致性,说明将广义梁理论应用于薄壁圆柱壳稳定性分析是可行的.
Abstract:
The generalised beam theory, which is widely applied to thin-walled prismatic shaped shells, is extended to conduct the stability analysis of a thin-walled cylindrical shell. Based on the orthogonal symmetric displacement function and considering the influence of the cross sectional distortion warp, the formulation of the critical stress is obtained by the energy method. Therefore, a new method for the stability analysis of cylindrical shells is proposed and relationships among the critical buckling stresses of the shells with different slenderness ratios, length and thickness are further studied. The results show that the critical stress decreases with the increase in the length of the shell with local minimum values corresponding to the critical stress of different buckling modes. The critical stress increases when the thickness of the shells increases. The results from the proposed method has good agreement with those from the finite element simulations and results from other researchers, which demonstrates that the application of the generalised beam theory to the stability analysis of thin-walled cylindrical shells is effective.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 谭福颖(1989—),女,硕士生;韩晓林(联系人),男,教授,xlhan@seu.edu.cn.
基金项目: 国家自然科学基金资助项目(10902024)、教育部新世纪优秀人才支持计划资助项目(NCET-11-0086)、江苏省自然科学基金资助项目(BK2010397)、航空科学基金资助项目(20090869009).
引文格式: 谭福颖,乔玲,韩晓林.基于广义梁理论的薄壁圆柱壳稳定性分析[J].东南大学学报:自然科学版,2013,43(5):1062-1067. [doi:10.3969/j.issn.1001-0505.2013.05.027]
更新日期/Last Update: 2013-09-20