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Erschienen in:
2022 | OriginalPaper | Buchkapitel
19. Numerical Analysis of the New Design of CFRP/GFRP Composite Rebars Subjected to Bending Loading
verfasst von : Michał Smolnicki, Grzegorz Lesiuk, Paweł Stabla, Szymon Duda, Paweł Zielonka
Erschienen in: Structural Integrity and Fatigue Failure Analysis
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Abstract
This paper presents the numerical simulation of the GFRP rebars subjected to the bending loading. Additionally, the comparison of the mechanical properties of CFRP/GFRP laminates with different fiber volumes is given according to the widely used hypotheses available in the literature. The most suitable hypotheses are the Abolish regarding Kirchhoff's (Shear) modulus and Chamisa's regarding Young's transverse modulus. These parameters were chosen in the further Finite Element Analysis (FEA). The pure bending is used to compare the individual conceptions of the rebar designs. The pure bending is obtained by rotation of 0.262 radians (approximately 15\(^\circ \)), since one end of the rod is fixed in all three directions. Profiles with a greater moment of inertia of the cross-section are preferred, which means profiles with larger overall dimensions for instance a ring-type cross-section. Additional elements enriching the cross-section, such as a coil, only slightly transfer the load.