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首页> 外文期刊>Advances in Structural Engineering >Finite Element Analysis to Determine Stress Concentration Factors of Dragline Tubular Joints
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Finite Element Analysis to Determine Stress Concentration Factors of Dragline Tubular Joints

机译：确定拉铲管接头应力集中因素的有限元分析

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摘要

This paper presents a finite element analysis (FEA), by using ANSYS 10.0 (SAS IP Inc 2005), to determine the stress concentration factor (SCF) of the dragline tubular joints. Different load cases, element types, weld sizes and shapes are considered in the analysis. The predicted SCF are compared with the experimental values based on full-size laboratory testing. Finite element (FE) model for the dragline tubular joint consists of the main chord and bracing members with all the attachments like, end plates, load cells, nuts and rods, with concave weld shape and equal weld leg length has been selected to determine SCF. Two layers of 10-node tetrahedral element (SOLID 187) and 2 layers of 20-node hexahedral element (SOLID 186) have been used in the FE model. The FEA results for all the laboratory test specimens are particularly good when loaded under load case 1 (LC1) and reasonable when loaded under load case 2 (LC2).
机译：本文介绍了一种有限元分析（FEA），方法是使用ANSYS 10.0（SAS IP Inc 2005）确定拉铲管接头的应力集中系数（SCF）。分析中考虑了不同的载荷工况，元件类型，焊缝尺寸和形状。将预测的SCF与基于标准实验室测试的实验值进行比较。拉铲管接头的有限元（FE）模型由主弦杆和支撑构件以及所有附件组成，例如端板，称重传感器，螺母和杆，并选择凹形焊接形状和相等的焊脚长度来确定SCF。 。 FE模型中使用了两层10节点的四面体单元（SOLID 187）和两层20节点的六面体单元（SOLID 186）。当在载荷情况1（LC1）下装载时，所有实验室测试样品的FEA结果特别好，而在载荷情况2（LC2）下装载时合理。

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