Numerical Modelling of the Constitutive Behaviour of FRCM Composites through the Use of Truss Elements.

Autor: Oddo MC; Department of Engineering, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy., Minafó G; Department of Engineering, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy., Di Leto M; Department of Engineering, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy., La Mendola L; Department of Engineering, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy.
Jazyk: angličtina
Zdroj: Materials (Basel, Switzerland) [Materials (Basel)] 2023 Jan 22; Vol. 16 (3). Date of Electronic Publication: 2023 Jan 22.
DOI: 10.3390/ma16031011
Abstrakt: The modeling of the mechanical behavior of Fabric Reinforced Cementitious Matrix (FRCM) composites is a difficult task due to the complex mechanisms established at the fibre-matrix and composite-support interface level. Recently, several modeling approaches have been proposed to simulate the mechanical response of FRCM strengthening systems, however a simple and reliable procedure is still missing. In this paper, two simplified numerical models are proposed to simulate the tensile and shear bond behavior of FRCM composites. Both models take advantage of truss and non-linear spring elements to simulate the material components and the interface. The proposed approach enables us to deduce the global mechanical response in terms of stress-strain or stress-slip relations. The accuracy of the proposed models is validated against the experimental benchmarks available in the literature.
Databáze: MEDLINE
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