钢结构英语翻译This paper presents the failure pattern, ultimate sta

钢结构英语翻译
This paper presents the failure pattern, ultimate static strength and detailed behavior of un-stiffened T and Y tubular joints under axial brace compressive loading using finite element method performed by ABAQUS software package. Properties of the un-stiffened tubular joints were extracted from the available experimental-based tubular joint database. Utilizing the Modified Riks Method in numerical analyses led to an accurate simulation of joint behavior and also helped to investigate its correct failure pattern. The modes of failure observed throughout the numerical analysis were local bending of the chord member, ovalization and plastic failure of the chord. The results obtained from the numerical modeling revealed the critical areas on the joint surface with respect to ovalization, deflections and stresses. Also, the ultimate strength predicted by the numerical analysis was compared and validated with available experiment results. Despite the fact that much research has been conducted on tubular joints which have mostly focused on the estimation of ultimate strength or stress concentration factors rather than detail study of joint behavior, the present detail investigation has provided a thorough understanding of joint behavior under axial compressive loads. Such an in-depth and detail tubular joint investigation has been rarely reported in the open literature.

本文介绍了失效模式,极限静强度和详细的行为联合国加筋T、Y型管节点轴向撑压缩载荷采用有限元方法通过ABAQUS软件包下进行.联合国的性质加筋管接头从可用的实验为基础的管接头数据库中提取.在数值分析,利用改进的Riks方法LED的联合行为的精确模拟,也有助于探讨其正确的失效模式.在数值分析中观察到的失效模式是局部的弦杆弯曲,截面畸变和塑性破坏的和弦.通过数值模拟揭示了临界区对接头表面相对于椭圆化变形和应力.同时,极限强度预测的数值分析进行比较,与现有的实验结果验证.尽管许多研究已大多集中在管接头的极限强度和应力集中系数而不是共同行为的详细研究进行了详细的调查估计,目前提供了一个深入了解行为共同承受轴向压缩载荷.这样的深入和详细的管接头的调查已经在公开的文献中很少报道.