Numerical simulation of instability behaviour of thin-walled frames with flexible connections

摘要：

A one-dimensional finite element (FE) formulation for numerical simulation of instability behaviour of thin-walled frames containing flexible connections is presented in this paper. Stiffness matrices of a conventional 14-degree of freedom beam element are derived by applying the linearized virtual work principle and Vlasovs assumption. The structural material is assumed to be homogeneous, isotropic and linear-elastic. Flexible connection behaviour and different warping deformation conditions are introduced into the numerical model by modifying stiffness matrices of a conventional beam element. For that purpose a special transformation matrix is derived. The effectiveness of the numerical algorithm discussed is validated through the test problem.

关键词： structural stability thin-walled frames flexible connections space beam element

作者: Goran Turkalj Josip Brnic Goran Vizentin Domagoj Lanc

作者单位: Department of Engineering Mechanics, Faculty of Engineering, University of Rijeka Vukovarska 58, HR-51000 Rijeka, CROATIA

会议类型: 国际会议

会议名称: The Fifth International Conference on Physical and Numerical Simulation of Materials Processing(第五届材料与热加工物理模拟及数值模拟国际会议)

会议地点: 郑州

会议语种:英文

在线出版日期: 2007-10-23（万方平台首次上网日期，不代表论文的发表时间）