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Low-Cycle Fatigue of FRP Strips Glued to a Quasi-Brittle Material

Martinelli, Enzo ; Caggiano, Antonio (2022):
Low-Cycle Fatigue of FRP Strips Glued to a Quasi-Brittle Material. (Publisher's Version)
In: Materials, 14 (24), MDPI, e-ISSN 1996-1944,
DOI: 10.26083/tuprints-00020281,
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Item Type: Article
Origin: Secondary publication DeepGreen
Status: Publisher's Version
Title: Low-Cycle Fatigue of FRP Strips Glued to a Quasi-Brittle Material
Language: English
Abstract:

This paper aims at further advancing the knowledge about the cyclic behavior of FRP strips glued to quasi-brittle materials, such as concrete. The results presented herein derive from a numerical model based on concepts of based on fracture mechanics and already presented and validated by the authors in previous works. Particularly, it assumes that fracture processes leading to debonding develop in pure mode II, as is widely accepted in the literature. Starting from this assumption (and having clear both its advantages acnd shortcomings), the results of a parametric analysis are presented with the aim of investigating the role of both the mechanical properties of the interface bond–slip law and a relevant geometric quantity such as the bond length. The obtained results show the influence of the interface bond–slip law and FRP bond length on the resulting cyclic response of the FRP-to-concrete joint, the latter characterized in terms of S-N curves generally adopted in the theory of fatigue. Far from deriving a fully defined correlation among those parameters, the results indicate general trends that can be helpful to drive further investigation, both experimental and numerical in nature.

Journal or Publication Title: Materials
Volume of the journal: 14
Issue Number: 24
Place of Publication: Darmstadt
Publisher: MDPI
Collation: 14 Seiten
Uncontrolled Keywords: FRP, concrete, debonding, cyclic actions
Classification DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Divisions: 13 Department of Civil and Environmental Engineering Sciences > Institute of Construction and Building Materials
Date Deposited: 22 Apr 2022 12:09
Last Modified: 21 Oct 2022 13:26
DOI: 10.26083/tuprints-00020281
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-202814
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/20281
PPN: 500484767
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