Bending behaviour of thin-walled perforated channel beams with modified cross sectional shape – Part 2: analytical calculations and FEM

• Autorzy: Jasion Paweł , Pawlak Aleksandra Magdalena , Paczos Piotr , Plust Michał , Rodak Marcin

Identyfikatory

DOI

10.24425/bpasts.2025.153435

• Języki publikacji: EN

Abstrakty

EN

This article is the second part of a comprehensive research program investigating the structural performance of thin-walled channels with modified cross-sectional geometries. The study involved testing six beams, three of which featured perforated webs, while the other three had flat, solid webs. The beams were subjected to four-point bending tests in order to evaluate their load-bearing capacity. The first part of the research presented the results of experimental tests and finite strip analysis. This article will focus on finite element analyses and analytical calculations conducted in accordance with Eurocode 3 guidelines and the principle of minimizing potential energy. The study provides several significant contributions: it integrates experimental, numerical and theoretical methods to deliver a thorough evaluation of beam performance. The finite element method (FEM) simulations offer precise modeling of complex stress and strain states, while analytical calculations supply a solid theoretical foundation for interpreting structural behavior. The research demonstrates that web perforation, while reducing critical and maximum forces, also results in considerable weight savings, enhancing material efficiency. Additionally, the division of the research into two articles ensures clarity and accessibility, with this second part being dedicated to detailed FEM and analytical results, thereby facilitating both academic understanding and practical engineering applications.

Słowa kluczowe

EN

thin-walled channel beams; web perforations; four-point bending; structural stability; buckling analysis

PL

belka cienkościenna; perforacja; zginanie czteropunktowe; stateczność konstrukcji; analiza wyboczeniowa

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2025
• Tom: Vol. 73, nr 4
• Strony: art. no. e153435
• Opis fizyczny: Bibliogr. 30 poz., rys., tab., wykr.

Twórcy

autor

Jasion Paweł

• Poznań University of Technology, Institute of Applied Mechanics, Jana Pawła II 24, 60-965 Poznań, Poland

• https://orcid.org/0000-0003-4562-2535

autor

Pawlak Aleksandra Magdalena

• Poznań University of Technology, Institute of Applied Mechanics, Jana Pawła II 24, 60-965 Poznań, Poland

• https://orcid.org/0000-0001-9389-0708

autor

Paczos Piotr

• Poznań University of Technology, Institute of Applied Mechanics, Jana Pawła II 24, 60-965 Poznań, Poland

• https://orcid.org/0000-0001-6054-8834

autor

Plust Michał

• Poznań University of Technology, Institute of Applied Mechanics, Jana Pawła II 24, 60-965 Poznań, Poland

• https://orcid.org/0000-0003-2768-6367

autor

Rodak Marcin

• Poznań University of Technology, Institute of Applied Mechanics, Jana Pawła II 24, 60-965 Poznań, Poland

• https://orcid.org/0000-0002-6642-8646

Bibliografia

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Uwagi

1) Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2026).

2) The project was funded by the National Science Centre, Poland, allocated on the basis of decision No. DEC-2021/43/B/ST8/00845 of 2022-05-23 – Contract No. UMO-2021/43/B/ST8/00845.