Bending Failure Behavior of the Glass Fiber Reinforced Composite I-Beams Formed by a Novel Bending Pultrusion Processing Technique

• Autorzy: Zhu Lvtao , Cao Shengbin , Zhang Xiaofeng , Li Lei

Identyfikatory

DOI

10.2478/aut-2021-0005

• Języki publikacji: EN

Abstrakty

EN

The glass fiber reinforced resin matrix composite I-beams were designed and formed via a type of novel bending pultrusion processing technique, and the three-point bending tests were carried out to analyze the mechanical bending performances. The obtained results show that the main failure mode of the composite I-beam under the bending load is the upper structure (top flange) cracks along the length direction of the fibers, and the cracks simultaneously propagate downwards in the vertical direction. The bifurcated cracks can be found at the junction area between the top flange and web. In addition, the main bending failure mechanism of the composite I-beam includes the matrix cracking, propagation of cracks, and final fracture failure. In particular, noting that when the crack reaches the I-shaped neck position, the lateral bifurcation occurs, and the resulting secondary cracks further extend in two directions, which leads to the serious damage between the top flange and web, and the ultimate fracture failure occurs.

Słowa kluczowe

EN

bending pultrusion forming; glass fiber; three-point bending; failure mechanism

PL

pultruzja; włókno szklane; zginanie trzypunktowe; mechanizm zniszczenia

• Wydawca: Lodz University of Technology, Faculty of Material Technologies and Textile Design
• Czasopismo: Autex Research Journal
• Rocznik: 2022
• Tom: Vol. 22, no. 2
• Strony: 172--176
• Opis fizyczny: Bibliogr. 25 poz.

Twórcy

autor

Zhu Lvtao

• College of Textile Science and Engineering, Zhejiang Sci-Tech University, Zhejiang, People’s Republic of China
• The Opening Project of Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province, Zhejiang, People’s Republic of China

autor

Cao Shengbin

• School of Materials Science, Shanghai Dianji University, Shanghai, People’s Republic of China

autor

Zhang Xiaofeng

• School of Mechanical Engineering, Shanghai Dianji University, Shanghai, People’s Republic of China

autor

Li Lei

• School of Materials Science, Shanghai Dianji University, Shanghai, People’s Republic of China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).