Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 82 for “"Glass fibre"”.
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The reuse and recycling of glass fibre waste
… investigated the reuse and recycling of waste glass fibre to produce filament wound composite tubes that can be used to replace existing cardboard tubes. Waste taken from glass fibre weaving has been used to produce composite tubes with a good quality surface finish and higher mechanical …
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Coalescence mechanisms of dispersions in glass fibre beds
… secondary liquid-liquid dispersions in fibrous glass packing has been investigated. A novel technique was developed to study drops within the packing by matching the refractive indices of the packing, its holder and the continuous and dispersed phases. This rendered the packing transparent and a …
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The processing and characterisation of recycled glass fibre composites
The widespread use of glass fibre reinforced polymers (GFRP) over the last decades has led to an increasing amount of waste and a demand for recycling solutions. Mechanical, chemical and thermal GFRP recycling processes have been developed in academia but the commercialisation of GFRP recycling …
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Bond of glass fibre reinforced polymer bars in high strength concrete
… studies have been conducted to examine bond of glass fibre reinforced polymer (GFRP) bars with high concrete strength. The current research project aims to compare between bond measured from a pull-out test and a hinged beam test for GFRP bars embedded in high strength concrete. Different …
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The response of aluminium and glass fibre FMLS subjected to blast loading
Fibre-Metal Laminates (FMLs) have long been of interest to the aeronautics industry due to their exceptional strength to weight ratio, fatigue and impact resistance. Due to the increasing global risk of subversive activity in this industry, the focus of research in recent years has shifted to the …
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Recycling of glass fibre reinforced polymer composite wind turbine blades in South Africa
… This research refines the study to looking at Glass Fibre Reinforced Polymer (GFRP) recycling for South Africa whilst considering wind turbine blades as the source of this scrap GFRP. At a global scale, five main categories of GFRP recycling methods are identified: mechanical, thermal, …
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Characterisation of Glass Fibre Polypropylene and GFPP based Fibre Metal Laminates at high strain rates
Fibre reinforced polymers (FRP) are finding increasing use in structures subjected to high rate loading such as blast or impact. Proper design of such structures requires thorough characterisation of the material behaviour over a range of loading rates from quasi-static to impact. This thesis …
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Characterisation and refinement of properties of glass fibre reinforced polyester polymer concrete for use in manhole components
… and refine the physical properties of glass fibre reinforced polyester polymer concrete. This material is currently being employed by AV Mouldings (Pty) Ltd. to manufacture manhole and drain components according to specifications existing for cast iron covers. No specification exists …
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Fibre Length Distribution and Dispersion during the Injection Moulding Process: An experimental study evaluating fibre length attrition and dispersion during processing of long glass fibre reinforced polymer composites in injection moulding including an evaluation of long glass fibre measurement techniques
This project evaluates fibre length dispersion and distribution within the injection moulding process of long glass fibre reinforced polypropylene, sponsored by Autodesk Simulation. The primary material used in this investigation was a 15 mm long glass fibre reinforced polypropylene consisting of …
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Crashworthiness capability of jute and glass fibre reinforced epoxy tubes under quasi-static loading condition for automotive application
… kused to search the influence of utilizing jute fibre on crashworthiness parameters of composite materials. To improve the mechanical properties, jute fiber was hybridized with glass fiber. In this work, there are two main parts of study. Firstly, it is to investigate the effect of …
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Development of a New Environmentally Friendly Glass Fibre Reinforced Cold Mix Microasphalt with High Resistance to Cracking and Deformation.
… of microapshalt both with and without a novel glass fibre applied. The effect of varying the length of glass fibres (aspect ratio) and varying the percentage of quantity of glass fibres (volume fraction) in the microasphalt mix was probed. The investigation was divided into three main areas of …
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The effect of blast loading on composites that contain sustainable materials
… sustainability, bio-based resins, and natural fibres as reinforcements in Fibre Reinforced Polymer (FRP) composites offer potential benefits, and some of these can be used in different applications particularly when strength is of secondary importance (such as automotive, architecture, and …
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Damage accumulation in hybrid woven fabric composites.
Damage accumulation in glass fibre woven reinforced epoxy laminates manufactured from two different fabrics have been investigated under three different loading conditions. One of the woven fabrics was non-hybrid glass using E-glass fibre yams in both warp and weft (fill) directions, the second …
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Mechanical behaviour and fracture toughness of unfilled and short fibre filled polypropylene both drawn and undrawn. Experimental investigation the effect of fibre content and draw ratio on the mechanical properties of unfilled and short glass fibre filled polypropylene
… is to investigate the combined effects of glass fibre reinforcement and molecular orientation in polypropylene-short glass fibre composites. Specimens have been fabricated using the injection moulding process and drawn using a small die drawing rig. The effects of die drawing on the fibre …
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Fibre Orientation and Breakage in Glass Fibre Reinforced Polymer Composite Systems: Experimental Validation of Models for Injection Mouldings. Validation of Short and Long Fibre Prediction Models within Autodesk Simulation Moldflow Insight 2014
… and length of injection moulded short and long fibres composite components. The fibre orientation distribution (FOD) measurements for both geometries have been taken along the flow path. In shear flow the FOD changes along the flow path, however the FOD remains relatively constant during …
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Self-reinforced polymer composites for energy absorbing applications
… ensures a strong interfacial bond between the fibre and the matrix. Self-reinforced polypropylene is one of the most common SRCs, available in the market. Self-reinforced polypropylene (SRPP) materials are used for energy-absorbing applications due to their high ductility and impact resistance. …
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The mechanochemical modification of polyolefins using reactive modifier systems
… work was to improve the mechanical properties of glass fibre reinforced polypropylene (PP) composites by the mechanochemical modification of the PP. The modification of the PP was carried out by reactive processing of the PP with a modifier in a Buss Ko-Kneader. Two main types of modifier were …
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An investigation into the behaviour of various sized fibre reinforced plastic beams
… of an investigation into the behaviour of fibre reinforced composite beams of various sizes subjected to flexural loading. The distribution of stress and strain through the depth of glass fibre reinforced composite beams were investigated using three experimental techniques, namely: …
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The tribological behaviour of glass filled polytetrafluoroethylene(PTFE) under dry and water lubrication
… the tribological behaViour of 25 % wt glass fibre filled polytetrafluoroethylene (PTFE) under dry sliding conditions. The experimental work was extended to compare and include its wear behaviour with other fillers such as bronze, carbon and graphite and to conduct tests under under …
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The response of concave singly curved fibre reinforced moulded sandwich and laminated composite panels to blast loading
… of air-blast loading on concave, singly curved fibre reinforced sandwich and composite panels. Sandwich panels and equivalent mass glass fibre laminates were manufactured and tested. Three types of curvature namely a flat panel (with infinite curvature), a curvature of 1000 mm radius and a …
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