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Showing 1 to 13 of 13 for “"microbond"”.
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Fracture analysis of carbon fiber/epoxy matrix interface through microbond and cruciform tests
… this study is devoted to the simulation of the microbond test, in which, a drop of epoxy deposited on a carbon fiber is subjected to a longitudinal load, which eventually leads to the shear failure of the interface. An axisymmetric finite element analysis is carried out with ABAQUS [2] CAE to …
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Adhesion of novel high performance polymers to carbon fibers: fiber surface treatment, characterization, and microbond single fiber pull-out test
… thermoplastic, was evaluated using the microbond single fiber pull-out test. The objective was to determine the chemical and mechanical properties of the fiber and the polymer which affect the fiber/polymer adhesion in a given composite system. Fiber/matrix adhesion is of interest since …
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Modelling environmental effects on fracture damage of natural fibre-reinforced polymer composites
… strength was assessed through the single fibre microbond method. Viscoelastic properties of matrix material which include storage modulus, loss modulus, and glass transition temperature were further determined and monitored using the Dynamic Mechanical Analysis (DMA) method. All tests conducted …
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Modelling environmental effects on fracture damage of natural fibre-reinforced polymer composites
… strength was assessed through the single fibre microbond method. Viscoelastic properties of matrix material which include storage modulus, loss modulus, and glass transition temperature were further determined and monitored using the Dynamic Mechanical Analysis (DMA) method. All tests conducted …
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Development of Micro and Nanostructured Materials for Interfacial Self -Healing
… catalyst to the reinforcement-matrix interface. Microbond specimens, consisting of a single self-healing functionalized fiber embedded in a microdroplet of epoxy, are used to test virgin and healed fiber-matrix interfacial shear strength. When damage initiates at the fiber-matrix interface, the …
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Surface characterization of plasma treated carbon fibers and adhesion to polyethersulfone
… polyethersulfone (PES) was measured by using the microbond pull-out test, and compared to the adhesion of the same fibers to an epoxy resin. The load required to debond the microdroplet was used as a measure of the bond strength. The data were also analyzed in terms of interfacial fracture energy …
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Interfacial Adhesion Evaulation of Uniaxial fiber-Reinforced-Polymer Composites by Vibration Damping of Cantilever Beam
… adhesion strength measurements were made by microbond test. A reasonable agreement was found between the measured interfacial adhesion strength and micromechanics calculations using results from vibration damping experiments. The study was also extended to multi-fiber composites. The …
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The processing and characterisation of recycled glass fibre composites
… matrix. However, micromechanical tests like the microbond tests are still required for more detailed studies of the interfacial adhesion because the composite tensile properties are often affected by a number of interacting factors.;Glass fibres were thermally degraded before composite processing …
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Polymer architecture effects on mechanochemical reactions
… applied to the mechanophore by a single fiber microbond testing protocol. Results suggest that covalent attachment as well as frictional force might be able to activate mechanophores at interfaces.
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Solvent-based self-healing approaches for fiber-reinforced composites
… resin and ethyl phenyl acetate (EPA) solvent. Microbond specimens consisting of a single fiber and a microdroplet of epoxy are cured at 35C, tested, and the interfacial shear strengths (IFSS) during the initial (virgin) debonding and subsequent healing events are measured. Debonding of the …
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Multiscale Damage Modelling of Natural Fibre Composites
… interface was also investigated using microbond tests on interface specimens. Flax, like other natural fibres, demonstrates a spread in properties that could be attributed to several factors, including the location of extraction of the fibres from the stem, the age of plants and the …
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Multiscale characterization of carbon fiber-reinforced epoxy composites
… adhesion was characterized using a single fiber microbond test procedure, and the onset and density of transverse cracking events in cross-ply composites were measured using acoustic emission. Additional characterizations of the epoxy mechanical properties, thermal properties, and degree of cure …
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Multiscale characterization of mechanochemical reactions in mechanophore-crosslinked polymers under shear loading
… stress is imparted to the SP by a single fiber microbond testing protocol. In situ detection of SP activation at the interface is monitored by fluorescence spectroscopy. Unlike previous studies for bulk polymers, SP activation is achieved and detected at very low levels of applied shear stress. …