Thermomechanical Characterization of CFRPs under Elevated Temperatures for Strengthening Existing Structures

Fiber-reinforced polymers (FRP) are rapidly gaining acceptance from the construction sector due to their large effectiveness. They are mainly used as confining reinforcement for concrete columns and as tensile reinforcement for concrete beams, columns and slabs. FRPs are already used to a large exte...

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Main Authors: Christina Papadimitriou, Lazaros Melidis, Lambros Kotoulas, Nikolaos Makris, Konstantinos Katakalos
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Fibers
Subjects:
Online Access:https://www.mdpi.com/2079-6439/9/12/80
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author Christina Papadimitriou
Lazaros Melidis
Lambros Kotoulas
Nikolaos Makris
Konstantinos Katakalos
author_facet Christina Papadimitriou
Lazaros Melidis
Lambros Kotoulas
Nikolaos Makris
Konstantinos Katakalos
author_sort Christina Papadimitriou
collection DOAJ
description Fiber-reinforced polymers (FRP) are rapidly gaining acceptance from the construction sector due to their large effectiveness. They are mainly used as confining reinforcement for concrete columns and as tensile reinforcement for concrete beams, columns and slabs. FRPs are already used to a large extent for applications such as bridges and parking lots, where elevated temperatures are not the main risk. Their increasing use as structural reinforcement is hampered by the concern related to their behavior at elevated temperatures as the relevant research is deficient. Thanks to the significant advantage of FRPs’ mechanical properties, further investigation into the influence of heating on their mechanical behavior may solve many doubts. The present study examines the influence of temperatures, ranging among 50, 100 and 250 °C, on the tensile strength of FRP laminates with carbon fibers (CFRP). In addition, the resistance of CFRP specimens to low-cycle thermal loading at the temperatures of 50, 100 and 250 °C under constant tensile load was investigated. The experiments were carried out in the laboratory of Experimental Strength of Materials and Structures of Aristotle University of Thessaloniki.
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spelling doaj.art-98076bc020134dde972657da6afdd6502023-11-23T08:14:04ZengMDPI AGFibers2079-64392021-12-019128010.3390/fib9120080Thermomechanical Characterization of CFRPs under Elevated Temperatures for Strengthening Existing StructuresChristina Papadimitriou0Lazaros Melidis1Lambros Kotoulas2Nikolaos Makris3Konstantinos Katakalos4Laboratory of Experimental Strength for Materials and Structures, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceLaboratory of Experimental Strength for Materials and Structures, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceLaboratory of Experimental Strength for Materials and Structures, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceLaboratory of Experimental Strength for Materials and Structures, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceLaboratory of Experimental Strength for Materials and Structures, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceFiber-reinforced polymers (FRP) are rapidly gaining acceptance from the construction sector due to their large effectiveness. They are mainly used as confining reinforcement for concrete columns and as tensile reinforcement for concrete beams, columns and slabs. FRPs are already used to a large extent for applications such as bridges and parking lots, where elevated temperatures are not the main risk. Their increasing use as structural reinforcement is hampered by the concern related to their behavior at elevated temperatures as the relevant research is deficient. Thanks to the significant advantage of FRPs’ mechanical properties, further investigation into the influence of heating on their mechanical behavior may solve many doubts. The present study examines the influence of temperatures, ranging among 50, 100 and 250 °C, on the tensile strength of FRP laminates with carbon fibers (CFRP). In addition, the resistance of CFRP specimens to low-cycle thermal loading at the temperatures of 50, 100 and 250 °C under constant tensile load was investigated. The experiments were carried out in the laboratory of Experimental Strength of Materials and Structures of Aristotle University of Thessaloniki.https://www.mdpi.com/2079-6439/9/12/80fiber-reinforced polymerthermomechanical characterizationelevated temperaturescivil engineering applications
spellingShingle Christina Papadimitriou
Lazaros Melidis
Lambros Kotoulas
Nikolaos Makris
Konstantinos Katakalos
Thermomechanical Characterization of CFRPs under Elevated Temperatures for Strengthening Existing Structures
Fibers
fiber-reinforced polymer
thermomechanical characterization
elevated temperatures
civil engineering applications
title Thermomechanical Characterization of CFRPs under Elevated Temperatures for Strengthening Existing Structures
title_full Thermomechanical Characterization of CFRPs under Elevated Temperatures for Strengthening Existing Structures
title_fullStr Thermomechanical Characterization of CFRPs under Elevated Temperatures for Strengthening Existing Structures
title_full_unstemmed Thermomechanical Characterization of CFRPs under Elevated Temperatures for Strengthening Existing Structures
title_short Thermomechanical Characterization of CFRPs under Elevated Temperatures for Strengthening Existing Structures
title_sort thermomechanical characterization of cfrps under elevated temperatures for strengthening existing structures
topic fiber-reinforced polymer
thermomechanical characterization
elevated temperatures
civil engineering applications
url https://www.mdpi.com/2079-6439/9/12/80
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AT lazarosmelidis thermomechanicalcharacterizationofcfrpsunderelevatedtemperaturesforstrengtheningexistingstructures
AT lambroskotoulas thermomechanicalcharacterizationofcfrpsunderelevatedtemperaturesforstrengtheningexistingstructures
AT nikolaosmakris thermomechanicalcharacterizationofcfrpsunderelevatedtemperaturesforstrengtheningexistingstructures
AT konstantinoskatakalos thermomechanicalcharacterizationofcfrpsunderelevatedtemperaturesforstrengtheningexistingstructures