Strain rate sensitive behavior of wollastonite-reinforced ethylene–propylene copolymer composites

Sarang, S; Misra, R.D.K.

doi:10.1016/j.msea.2004.04.004

Cited by 5 publications

(4 citation statements)

References 29 publications

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“…Sarang and Misra [18] studied the evolution of the micro-mechanisms of deformation and plastic deformation of an ethylene-propylene copolymer pure or reinforced by wollastonite with regard to strain sensitivity. These authors also show a modification of these mechanisms as a function of the strain rate.…”

Section: Introductionmentioning

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: Introductionmentioning

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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“…Coupling agents such as organotrialkoxysilanes, titanates, zirconates, organic acid-chromium chloride coordination complexes and many others have been studied [6,7]. Recently, ionic liquids were also used as coupling agents in polymeric composite systems.…”

Section: Introductionmentioning

confidence: 99%

“…Coupling agents have often received considerable attention from researchers in the last few decades due to the ability of these agents to act as a chemical bridge or an interaction link between hydrophilic and hydrophobic substances [ 5 ]. Coupling agents such as organotrialkoxysilanes, titanates, zirconates, organic acid-chromium chloride coordination complexes and many others have been studied [ 6 , 7 ]. Recently, ionic liquids were also used as coupling agents in polymeric composite systems.…”

Section: Introductionmentioning

confidence: 99%

Utilization of an Ionic Liquid/Urea Mixture as a Physical Coupling Agent for Agarose/Talc Composite Films

Shamsuri

Daik

2013

Materials

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An ionic liquid, 1-n-butyl-3-methylimidazolium chloride (BmimCl) was blended with urea at 1:1 mole ratio to create a BmimCl/Urea mixture. The agarose/talc composite films containing the BmimCl/Urea mixture were then acquired through a gelation method. The weight ratio of agarose and talc was fixed at 4:1, while the content of BmimCl/Urea was varied from 0 to 10 wt % relative to the overall weight of the composite films. The tensile stress and modulus results showed the optimum BmimCl/Urea content in the composite film lies at 8 wt %. The talc particles are embedded in the agarose matrix and there are no pullouts for the composite films containing BmimCl/Urea as demonstrated by SEM micrographs. The addition of BmimCl/Urea increased the glass transition temperature of the composite films, however, the thermal decomposition temperature decreased drastically. FTIR and FT-Raman spectra indicated the existence of interaction between agarose and talc, which improves their interfacial adhesion. As a conclusion, a BmimCl/Urea mixture can be utilized as a coupling agent for agarose/talc composite films.

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“…Therefore, high strain rate loading is probable in many of the applications where these composites find use as candidate materials [4]. As a consequence, study of how mechanical properties of these composites would change with strain rate is warranted to be able to design structures [5]. Increasing the strain rate leads to higher moduli because the polymer chains have reduced the relaxation time [6].…”

Section: Introductionmentioning

confidence: 99%

Influence of Strain Rate on the Flexural Properties of a Wood Flour/HDPE Composite

Dastoorian

Tajvidi

2008

Journal of Reinforced Plastics and Composites

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The effect of strain rate on flexural modulus (MOE), and flexural strength (MOR) was studied in a wood flour/high density polyethylene composite. Testing was performed in a three-point bending mode. Four different strain rates were used: 0.01, 0.02, 0.05, and 0.08 (min-1). The variations of flexural strength and flexural modulus were explained equally well by a linear relationship to strain rate. It was found that the mechanical properties of this material are significantly sensitive to strain rate. Based on statistical analysis, it was inferred that the flexural modulus was strain rate dependent and the sensitivity of MOE was more than that of MOR to strain rate. Relationships between flexural modulus, flexural strength, and strain rate allowing for the adjustment of these properties at different strain rates were also developed.

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Strain rate sensitive behavior of wollastonite-reinforced ethylene–propylene copolymer composites

Cited by 5 publications

References 29 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

Utilization of an Ionic Liquid/Urea Mixture as a Physical Coupling Agent for Agarose/Talc Composite Films

Influence of Strain Rate on the Flexural Properties of a Wood Flour/HDPE Composite

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