所属单位：土木工程学院

发表刊物：Advanced Materials Research Exchange Meeting on Building Environment and Energy

关键字：中文关键字：初始扭转；欧拉梁；有限元；刚度矩阵，英文关键字：Pre-twisted; Euler beam; Finite Element; Stiffness

摘要：Based on the traditional mechanical model of straight beam, the paper makes a systematic analysis and research on the pre-twisted Euler beam finite element numerical model. The paper uses two-node model of 12 degrees of freedom, axial displacement interpolation function using 2-node Lagrange interpolation function, beam transverse bending displacements (u and v ) still use the cubic displacement, bending with torsion angle displacement function using cubic polynomial displacement function. Firstly, based on the author previous literature on the flexure strain relationship, the paper deduces the element stiffness matrix of the pre-twisted beam. Finally, by calculating the pre-twisted rectangle section beam example, and contrasting three-dimensional solid finite element using ANSYS, the comparative analysis results show that pre-twisted Euler beam element stiffness matrix has good accuracy.

备注：黄莺

合写作者：陈昌宏

第一作者：黄莺

论文类型：期刊论文

卷号：卷：446-449

期号：期：

页面范围：页：3615-3618

是否译文：否

发表时间：2012-03-01