Experimental study of web-crippling behavior of pultruded GFRP I-section profiles under localized one-flange loading

IF 5.7 1区工程技术 Q1 ENGINEERING, CIVIL Thin-Walled Structures Pub Date : 2025-01-08 DOI:10.1016/j.tws.2025.112931

Yu-Yi Ye , José Gonilha , Nuno Silvestre , João R. Correia

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Abstract

This paper presents an experimental study on the web-crippling behavior of pultruded glass fiber reinforced polymer (GFRP) I-section profiles under localized one-flange loading. The study had two objectives: (i) to gain insight into the behavior of profiles under localized one-flange loading, which has not yet been sufficiently investigated, and (ii) to provide comprehensive experimental data for the future development of design methods. A total of 61 specimens were tested, 31 under end-one-flange (EOF) loading and 30 under interior-one-flange (IOF) loading. The test parameters included three bearing lengths (15/40/70 mm) and four profiles. The results showed that the shape and material properties of the profiles had negligible effects on the failure modes and transverse compressive strain distributions. Conversely, the bearing length had a significant impact on the ultimate loads. The IOF ultimate loads were higher than the EOF ones with the shortest bearing length (15 mm), whereas the opposite occurred for the longest bearing length (70 mm); possible reasons for this are discussed.

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来源期刊

Thin-Walled Structures 工程技术-工程：土木

CiteScore

9.60

自引率

20.30%

发文量

801

审稿时长

66 days

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.