Characterization of fiber/matrix interface strength: applicability of different tests, approaches and parameters

Zhandarov, Serge; Mäder, Edith

doi:10.1016/j.compscitech.2004.07.003

Cited by 385 publications

(205 citation statements)

References 46 publications

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“…For both test methods a correlation between the micro and macro mechanical properties can be seen. In the case of SFPO and transverse tensile strength the state of stress upon failure initiation is similar to Mode I [37]. Thus, a correlation between the two sets of data is not surprising.…”

Section: Micro Mechanical Characterization Of Selected Compositesmentioning

confidence: 58%

Systematically varied interfaces of continuously reinforced glass fibre/polypropylene composites: Comparative evaluation of relevant interfacial aspects

Rausch¹,

Zhuang²,

Maeder³

2010

Express Polym. Lett.

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Abstract.Interface related mechanical properties of unidirectional continuous glass fibre (GF)/polypropylene (PP) composites made of commingled yarns have been systematically studied according to a three level, three-factor factorial design. The three systematically varied factors comprised different silane coupling agent and film former contents in GF sizings as well as a varying GF diameter. Besides the statistical evaluation of those main effects on the transverse tensile and compression shear strengths of the composites, interfacial shear strength measurements on model composites have been performed. The latter ones as well as the results of the dynamic mechanical thermal analysis support the statistical significance of sizing components, the sizing content on the GF, and GF diameter for the mechanical properties of the composites. This highlights the interplay of proper sizing formulation and reproducible GF-spinning conditions, as both affect the interfacial bonding of continuously reinforced GF/PP composites.

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Section: Micro Mechanical Characterization Of Selected Compositesmentioning

confidence: 58%

Systematically varied interfaces of continuously reinforced glass fibre/polypropylene composites: Comparative evaluation of relevant interfacial aspects

Rausch¹,

Zhuang²,

Maeder³

2010

Express Polym. Lett.

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“…A typical microbond force-displacement plot is shown in There is debate in the literature as to whether the assumptions for the calculation of IFSS in this way are valid for the systems tested [30]. The deformation associated with debonding is assumed to be elastic, although some authors have noted that plastic deformation can occur for thermoplastic systems [31], potentially invalidating results.…”

Section: Microbond Testmentioning

confidence: 99%

The usability of recycled carbon fibres in short fibre thermoplastics: interfacial properties

et al. 2016

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The objective of this study was to investigate the feasibility of combining discontinuous recycled carbon fibres with polypropylene, to produce a low-cost, high specific stiffness material for high-volume applications. The inherent low affinity of carbon fibre and polypropylene motivated a detailed study of the surface characteristics of carbon fibre and interfacial behaviour between the two materials, using the microbond test. The effects of removing the sizing from the fibres, as well as introducing a maleic anhydride-grafted polypropylene coupling agent, were extensively investigated. Polypropylene was found to degrade when prepared under atmospheric conditions; therefore, it was necessary to form droplets under nitrogen. Removal of the sizing from the fibre using pyrolysis and solvolysis techniques altered the surface morphology of the fibre and increased the interfacial shear strength (IFSS) by 4 and 33 %, respectively. A more significant improvement in the fibre-matrix adhesion was achieved by adding a maleic anhydride coupling agent at 2 wt%, which increased the IFSS by 320 %.

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“…Many techniques have been developed over the years to analyse this interface region [2][3][4][5][6] Test methods continue to vary across the material testing industry with pull out, mircobond and a variation of others continually being used to investigate a range of material systems.…”

Section: Introductionmentioning

confidence: 99%

A method to measure the influence of humidity and temperature on the interfacial adhesion in polyamide composites

Downes

Thomason

2015

Composite Interfaces

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This version is available at https://strathprints.strath.ac.uk/47383/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output. A METHOD TO MEASURE THE INFLUENCE OF HUMIDITY AND TEMPERATURE ON THE INTERFACIAL ADHESION IN POLYAMIDE COMPOSITES AbstractThe work presented focuses on the need to better understand the effect environmental conditions, namely humidity have on the interfacial shear strength (IFSS) of composites. The IFSS was first characterised using the microbond test method in a laboratory atmosphere. A specialised rig was then designed and manufactured in order to carry out the microbond test in a Dynamic Mechanical Analyser with a humidity chamber accessory. Due to the wellknown moisture absorbing nature of polyamide matrices the effect of a range of conditions from 0% to 90% relative humidity were investigated. Results presented for both methods are based on the use of a PA6 matrix. Steel fibres are used extensively for method development and comparison throughout this work. Finally, successful testing on the primary system of fully sized HiPer-Tex™ glass fibre polyamide 6 effectively shows that humidity influences the measured apparent IFSS.

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Characterization of fiber/matrix interface strength: applicability of different tests, approaches and parameters

Cited by 385 publications

References 46 publications

Systematically varied interfaces of continuously reinforced glass fibre/polypropylene composites: Comparative evaluation of relevant interfacial aspects

Systematically varied interfaces of continuously reinforced glass fibre/polypropylene composites: Comparative evaluation of relevant interfacial aspects

The usability of recycled carbon fibres in short fibre thermoplastics: interfacial properties

A method to measure the influence of humidity and temperature on the interfacial adhesion in polyamide composites

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