SCF distribution in FRP-strengthened tubular T-joints under brace axial loading

被引：0
|
作者：
Hosseini A.S. [1 ]
Bahaari M.R. [1 ]
Lesani M. [2 ]
机构：
[1] School of Civil Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran
[2] School of Civil Engineering, College of Engineering, Sadra University, P.O. Box 314-14875, Tehran
来源：
Scientia Iranica | 2020年 / 27卷 / 3 A期
关键词：
Finite Elements (FE); FRP; SCF; Strengthening; Tubular T-joint;
D O I：
10.24200/SCI.2018.5471.1293
中图分类号：
学科分类号：
摘要：
The present article is dedicated to the study of the effects of different parameters of Fiber-Reinforced Polymers (FRP), as strengthening material, on a tubular Tjoint subjected to brace axial loading using Finite Element (FE) analyses. The effectiveness of FRP materials in enhancing the fatigue life of tubular T-joints was investigated through computing the ratio of the Stress Concentration Factors (SCFs). FRP parameters considered here include fiber orientation, FRP thickness, effective wrapping length, and FRP material properties. The FRP materials were modeled and applied to a basic numerical FE model, which was validated in the past against well-known experimental results on weld-toe SCFs. Promising results were derived from the analyses, showing that the FRP strengthening method can effectively decrease the SCF values for tubular T-joints. © 2020 Sharif University of Technology. All rights reserved.
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页码：1113 / 1129
页数：16
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