Predictions of viscoelastic strain rate dependent behavior of fiber-reinforced polymeric composites

Yang, Beomjoo; Kim, BR; Lee, Haeng‐Ki

doi:10.1016/j.compstruct.2011.11.016

Cited by 39 publications

(12 citation statements)

References 47 publications

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“…In a further paper all the experimental findings, established in this work, will be implemented into a predictive micromechanical model [32,33]. This multi-scale model would integrate fiber-matrix interface damage and the viscous rheology of the thermoplastic matrix in relation with the composite material microstructure.…”

Section: Resultsmentioning

confidence: 99%

Effect of the matrix behavior on the damage of ethylene–propylene glass fiber reinforced composite subjected to high strain rate tension

Fitoussi

Bocquet

Meraghni

2013

Composites Part B: Engineering

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This study investigates the origin of the strain rate effect on the mechanical behavior of a discontinuous glass fiber reinforced ethylene-propylene copolymer (EPC) matrix composite. This kind of composite materials are commonly used for automotive functional and structural applications. To this aim, a multi-scale experimental approach is developed. The deformation processes and the damage mechanisms observed at the microscopic scale are related to the material mechanical properties at the macroscopic scale. Tensile tests up to failure and specific interrupted tensile tests have been optimized and performed for high strain rates up to 200 s-1 to quantify the strain rate effect at different scales. High speed tensile tests have also been performed on the pure copolymer matrix. The threshold and the kinetic of damage have been quantified at both microscopic and macroscopic scales. Experimental results show that the composite behavior is strongly strain-rate dependent. The multi-scale analysis leads to the conclusion that the strain rate effect on the damage behavior of the EPC matrix composite is mainly due to the viscous behavior of the EPC matrix. SEM observations and analysis show that a localized deformation in the interface zone around fibers occurs at high strain rates and directly affects the visco-damage behavior. It is established that when the strain rate increases, the local deformation zone around the fibers behaves like a dissipation zone. Consequently, the damage initiation is delayed and the related kinetic is reduced with respect to the quasi-static loading case.

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Section: Resultsmentioning

confidence: 99%

Effect of the matrix behavior on the damage of ethylene–propylene glass fiber reinforced composite subjected to high strain rate tension

Fitoussi

Bocquet

Meraghni

2013

Composites Part B: Engineering

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“…Additional series of tests should be followed to explore the strengthening characteristic of the hybrid SFRP composites under different structural constraints. These studies are not limited to, but may include investigation of additional physical characteristics such as debonding properties and viscoelastic behaviors for more realistically predictions of the failure and the strain-rate dependent behavior of the composites (Yang et al, 2012). Nonetheless, these aspects are not of particular scope in the present work and should be considered in future work.…”

Section: Discussionmentioning

confidence: 99%

Structural strengthening and damage behaviors of hybrid sprayed fiber-reinforced polymer composites containing carbon fiber cores

Park

Yang

Kim

et al. 2016

International Journal of Damage Mechanics

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Recently, composite materials of a hybrid strategy are being developed to reduce the vulnerability of partial rupture failure. Simultaneously, the demand of a modelling method particularly for simulating the behavior of these materials is also emerging. This paper presents novel hybrid sprayed fiber-reinforced polymer composites containing carbon fiber cores developed for strengthening reinforced concrete structures, and a theoretical approach to model these materials. A micromechanical formulation that accounts for the hybrid characteristic of the composites was proposed to predict the overall performance of the composites. The derived model was then implemented into the nonlinear finite element codes to predict the structural behavior of the reinforced concrete beams retrofitted with the composites subjected to loading. A series of three-point bending tests of specimens were carried out to validate the predictability of the modeling technique. The obtained test results were comparatively explored with discussions of the theoretical approaches.

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“…Based on combination of the Laplace-transformed superposition principle and the ensemble-averaged micromechanics, Yang et al. 21 proposed a viscoelastic damage model, which predicted the effective viscoelastic behavior of the FRPs.…”

Section: Introductionmentioning

confidence: 99%

Thermoviscoelastic behavior of a short fiber-reinforced polymer hollow cylinder accounting for porosity

Dai

Luo

2016

Journal of Composite Materials

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In this paper, thermoviscoelastic behavior of a hollow cylinder made of short fiber-reinforced polymer considering porosity is investigated by an analytical method. Material properties, except the Poisson’s ratio and coefficient of thermal expansion, are assumed to be changed with the volume of constituents and porosity. Utilizing the finite Hankle integral transform and Laplace transform, analytical solutions for thermoviscoelastic behaviors of short fiber-reinforced polymer hollow cylinders under thermal and mechanical loads are obtained. Numerical examples show the influences of thermal load, mechanical load, and material porosity on the thermoviscoelastic behaviors of short fiber-reinforced polymer cylindrical structures.

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Predictions of viscoelastic strain rate dependent behavior of fiber-reinforced polymeric composites

Cited by 39 publications

References 47 publications

Effect of the matrix behavior on the damage of ethylene–propylene glass fiber reinforced composite subjected to high strain rate tension

Effect of the matrix behavior on the damage of ethylene–propylene glass fiber reinforced composite subjected to high strain rate tension

Structural strengthening and damage behaviors of hybrid sprayed fiber-reinforced polymer composites containing carbon fiber cores

Thermoviscoelastic behavior of a short fiber-reinforced polymer hollow cylinder accounting for porosity

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