{"title":"Structural performance and section classification of austenitic stainless steel welded I-section flexural members","authors":"Junwei Fan , Lu Yang , Keyang Ning","doi":"10.1016/j.tws.2025.112958","DOIUrl":null,"url":null,"abstract":"<div><div>This study investigates the structural performance and section classification of austenitic stainless steel welded I-section flexural members subjected to monotonic and cyclic loading. Finite element models of the stainless steel welded I-section beams were developed using the finite element software ABAQUS, and the validity of the finite element model was verified based on existing experimental research on stainless steel welded I-section member. A comprehensive series of parametric analyses were conducted using the validated finite element model to evaluate the load-bearing capacity and rotation capacity of the stainless steel flexural members under different loading conditions. Additionally, the rationality of the width-to-thickness ratio limits for different section classes, as outlined in the European stainless steel standard EN 1993-1-4 and the Chinese steel structure design standard GB 50017-2017, was assessed. The results indicate that there is a significant correlation between the effect of the width-to-thickness ratio of different components of the section on the section load-carrying capacity and rotation capacity. For austenitic stainless steel welded I-section flexural members, the section classification limits outlined in EN 1993-1-4 are conservative, whereas those in GB 50017-2017 are conservative for certain sections but may be unsafe for others. Furthermore, the loading conditions significantly affect structural performance and should be considered in the section classification. Consequently, an innovative section classification method was proposed, considering the correlation of section components, and new width-to-thickness ratio limits for austenitic stainless steel I-section flexural members were established for various section classes under both monotonic and cyclic loading.</div></div>","PeriodicalId":49435,"journal":{"name":"Thin-Walled Structures","volume":"210 ","pages":"Article 112958"},"PeriodicalIF":5.7000,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Thin-Walled Structures","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0263823125000527","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
引用次数: 0
Abstract
This study investigates the structural performance and section classification of austenitic stainless steel welded I-section flexural members subjected to monotonic and cyclic loading. Finite element models of the stainless steel welded I-section beams were developed using the finite element software ABAQUS, and the validity of the finite element model was verified based on existing experimental research on stainless steel welded I-section member. A comprehensive series of parametric analyses were conducted using the validated finite element model to evaluate the load-bearing capacity and rotation capacity of the stainless steel flexural members under different loading conditions. Additionally, the rationality of the width-to-thickness ratio limits for different section classes, as outlined in the European stainless steel standard EN 1993-1-4 and the Chinese steel structure design standard GB 50017-2017, was assessed. The results indicate that there is a significant correlation between the effect of the width-to-thickness ratio of different components of the section on the section load-carrying capacity and rotation capacity. For austenitic stainless steel welded I-section flexural members, the section classification limits outlined in EN 1993-1-4 are conservative, whereas those in GB 50017-2017 are conservative for certain sections but may be unsafe for others. Furthermore, the loading conditions significantly affect structural performance and should be considered in the section classification. Consequently, an innovative section classification method was proposed, considering the correlation of section components, and new width-to-thickness ratio limits for austenitic stainless steel I-section flexural members were established for various section classes under both monotonic and cyclic loading.
期刊介绍：
Thin-walled structures comprises an important and growing proportion of engineering construction with areas of application becoming increasingly diverse, ranging from aircraft, bridges, ships and oil rigs to storage vessels, industrial buildings and warehouses.
Many factors, including cost and weight economy, new materials and processes and the growth of powerful methods of analysis have contributed to this growth, and led to the need for a journal which concentrates specifically on structures in which problems arise due to the thinness of the walls. This field includes cold– formed sections, plate and shell structures, reinforced plastics structures and aluminium structures, and is of importance in many branches of engineering.
The primary criterion for consideration of papers in Thin–Walled Structures is that they must be concerned with thin–walled structures or the basic problems inherent in thin–walled structures. Provided this criterion is satisfied no restriction is placed on the type of construction, material or field of application. Papers on theory, experiment, design, etc., are published and it is expected that many papers will contain aspects of all three.
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