Long-term behavior of PC beams externally plated with prestressed FRP systems: A mechanical model

Ascione, Luigi; Berardi, Valentino Paolo; D'Aponte, Anna

doi:10.1016/j.compositesb.2011.02.023

Cited by 24 publications

(7 citation statements)

References 7 publications

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“…Residual stiffness is not simple to model as there are several overlapping factors including the rheological responses, bulk molecular kinematics and variations in molecular orientations at fibre interfaces, each as a function of loading time and frequency [308,309,310,311]. Yang et al [312] developed a stiffness reduction model assuming the stress-strain curve to failure as linear.…”

Section: Residual Stiffness Modelsmentioning

confidence: 99%

The fatigue of carbon fibre reinforced plastics - A review

Alam

Mamalis

Robert

et al. 2019

Composites Part B: Engineering

275

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Engineering structures are often subjected to the conditions of cyclic-loading, which onsets material fatigue, detrimentally affecting the service-life and damage tolerance of components and joints. Carbon fibre reinforced plastics (CFRP) are high-strength, lowweight composites that are gaining ubiquity in place of metals and glass fibre reinforced plastics (GFRP) not only due to their outstanding strength-to-weight properties, but also because carbon fibres are relatively inert to environmental degradation and as such, show potential as corrosion resistant materials. The effects of cyclic loading on the fatigue of CFRP are detailed in several papers. As such, collating research on CFRP fatigue into a single document is a worthwhile exercise, as it will benefit the engineering-readership interested in designing fatigue resistant structures and components using CFRP. This review article aims to provide the most relevant and up-to-date information on the fatigue of CFRP. The review focuses in particular on defining fatigue and the mechanics of cyclically-loaded composites, elucidating the fatigue response and fatigue properties of CFRP in different forms, discussing the importance of environmental factors on the fatigue performance and service-life, and summarising the different approaches taken to modelling fatigue in CFRP.

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Section: Residual Stiffness Modelsmentioning

confidence: 99%

The fatigue of carbon fibre reinforced plastics - A review

Alam

Mamalis

Robert

et al. 2019

Composites Part B: Engineering

275

View full text Add to dashboard Cite

show abstract

“…Consequently, creep sensitive materials can undergo stress migration from FRP reinforcement to the base structural element, thus degrading the reinforcement effectiveness. [31][32][33][34][35] In civil engineering applications, this effect is considered in national and international guidelines by means of conservative methodologies for rehabilitation design of existing structures. [36][37][38] In mechanical and industrial sectors, long-time deformations of FRP composites can compromise the beneficial effects of repair interventions due to lack of stiffness, strength, and dimensional stability.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation and numerical modeling of creep response of glass fiber reinforced polymer composites

Berardi

Perrella

Armentani

et al. 2021

Fatigue Fract Eng Mat Struct

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Predictive models play an important role for increasing the reliability of composite structures over time, but a great deal of experimental data is requested. In this paper, results from creep experiments on uniaxial E‐glass fiber reinforced polymer (FRP) single ply laminates, performed at different stress levels, are presented. The tests duration was of 42 months. Analytical modeling of the viscous behavior of the tested GFRP composite, under linear and nonlinear viscoelastic hypotheses, is reported. A discussion on the comparison of creep strain response by Burgers model, with parameters obtained from fitting of data for different test duration, is also proposed. Finally, predictive finite element method (FEM) simulations were carried out for discussing the deferred behavior induced by creep, for composite layers used for repair purposes in hydrogen transportation pipes. Numerical results highlighted a non‐negligible difference in creep strain values, pointing out that a model based on experimental tests with shorter duration leads to a conservative composite design.

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“…Ma et al proposed a method to measure hygroscopic expansion by means of DMA [37]. Mechanical models to describe the long-term stress relaxation behaviour of structural members are presented by Ascione et al [38] and Berardi and Mancusi [39,40]. The long-term creep behaviour of glass-fibre-reinforced polymers (GFRP) was studied by Berardi et al [41] and successfully modelled by means of Burger's model.…”

Section: Introductionmentioning

confidence: 99%

Hygrothermal viscoelastic material characterisation of unidirectional continuous carbon-fibre reinforced polyamide 6

Dijk

Grätzl

Abouhamzeh

et al. 2018

Composites Part B: Engineering

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This paper presents results of material characterisation experiments on the hygrothermal viscoelastic behaviour of unidirectional laminates of continuous carbon-fibre reinforced polyamide 6. The material behaviour when subjected to the automotive painting process is of interest.Coefficients of thermal-and -moisture expansion were determined from dilatometer experiments and micrometer measurements together with weighing, respectively. Diffusion coefficients were generated from thermogravimetric analysis and fitted with the Arrhenius equation. Dynamic mechanical analysis and digital image correlation of quasi-static tensile tests were performed to obtain a relaxation curve and a major Poisson's ratio, respectively. The Williams-Landel-Ferry equation was fitted to the time shift factors.

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Long-term behavior of PC beams externally plated with prestressed FRP systems: A mechanical model

Cited by 24 publications

References 7 publications

The fatigue of carbon fibre reinforced plastics - A review

The fatigue of carbon fibre reinforced plastics - A review

Experimental investigation and numerical modeling of creep response of glass fiber reinforced polymer composites

Hygrothermal viscoelastic material characterisation of unidirectional continuous carbon-fibre reinforced polyamide 6

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