Identifying Critical Loads of Frame Structures with Equilibrium Equations in Rate Form
Identifying Critical Loads of Frame Structures with Equilibrium Equations in Rate Form
复制标题
用速率形式的平衡方程确定框架结构的临界载荷
DOI:
10.1155/2015/325969
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发表时间:
2015-08
影响因子:
--
通讯作者:
Wang Gang
中科院分区:
文献类型:
--
作者:
Qi Zhaohui;Kong Xianchao;Wang Gang
Frame structures are widely used in engineering practice. They are likely to lose their stability before damage. As an indicator of load-carrying capability, the first critical load plays a crucial role in the design of such structures. In this paper, a new method of identifying this critical load is presented, based on the governing equations in rate form. With the presented method, a great deal of well-developed numerical methods for ordinary differential equations can be used. As accurate structural tangent stiffness matrices are essential to stability analysis, the method to obtain them systematically is discussed. To improve the computational efficiency of nonlinear stability analysis in large-scale frame structures, the corotational substructure elements are formulated as well to reduce the dimension of the governing equations. Four examples are studied to illustrate the validity and efficiency of the presented method.
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影响因子:
3.1
作者:
Yongjun He;Xu-hong Zhou;P. Hou
通讯作者:
Yongjun He;Xu-hong Zhou;P. Hou
DOI:
10.1016/0045-7825(82)90069-x
发表时间:
1982-01-01
影响因子:
7.2
作者:
ARGYRIS, J
通讯作者:
ARGYRIS, J
影响因子:
--
作者:
G. Joldes;Benjamin F. Zwick
通讯作者:
G. Joldes;Benjamin F. Zwick
DOI:
10.1016/s0045-7825(03)00254-8
发表时间:
2003-04
影响因子:
7.2
作者:
Jean-Marc Battini;C. Pacoste;A. Eriksson
通讯作者:
Jean-Marc Battini;C. Pacoste;A. Eriksson
DOI:
10.1002/0470868279
发表时间:
2005-01
期刊:
--
影响因子:
--
作者:
Branislav @. Nikoli
通讯作者:
Branislav @. Nikoli