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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 66 for “"Fibre reinforced polymer."”.
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Retrofitting of Mechanically Degraded Concrete Structures Using Fibre Reinforced Polymer Composites
… term loaded behaviour of mechanically degraded reinforced concrete (RC) flexural elements, which are strengthened with fibre reinforced polymer (FRP) composites. The two main objectives have been: (a) to conduct a series of realistic tests, the results of which would be used to establish the …
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Bond of glass fibre reinforced polymer bars in high strength concrete
… 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 parameters …
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Modelling environmental effects on fracture damage of natural fibre-reinforced polymer composites
The behaviour of sodium hydroxide treated sisal fibre-reinforced polyester composite subjected to environmental ageing conditions has been studied with the aim of modelling its effect on the composite fracture damage for the purpose of long-term performance prediction. The composite was accelerated …
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Modelling environmental effects on fracture damage of natural fibre-reinforced polymer composites
The behaviour of sodium hydroxide treated sisal fibre-reinforced polyester composite subjected to environmental ageing conditions has been studied with the aim of modelling its effect on the composite fracture damage for the purpose of long-term performance prediction. The composite was accelerated …
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Behaviour of Fibre Reinforced Polymer Confined Reinforced Concrete Columns Under Fire Condition
In recent years, fibre reinforced polymer (FRP) materials have demonstrated enormous potential as materials for repairing and retrofitting concrete bridges that have deteriorated from factors such as electro-chemical corrosion and increased load requirements. However, concerns associated with fire …
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Recycling of glass fibre reinforced polymer composite wind turbine blades in South Africa
… 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, chemical, …
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Behaviour of lightweight concrete beams strengthened with carbon fibre reinforced polymer in shear
Epoxy bonded fibre reinforced polymer (FRP) composites are widely used for the retrofit of ailing reinforced concrete structures, for both shear and flexure. This technology provides unique features compared with conventional retrofitting systems. Among these FRP has good corrosion resistance, …
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Fatigue Strengthening of Damaged Steel Plates using Ultra-High Modulus Carbon Fibre-reinforced Polymer Plates
… patch Ultra-high modulus (UHM) carbon-fiber reinforced polymer (CFRP) plates of 460 GPa modulus in extending fatigue life and slowing crack propagation in steel plates with simulated fatigue cracks. The study investigates a range of bond lengths at or below the development length of UHM CFRP …
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An integrated framework for finite element modelling of ultrasonic inspections of carbon fibre reinforced polymer components
… to provide optimum strength and stiffness.Carbon Fibre Reinforced Polymer (CFRP) composite materials pose a challenge for ultrasonic Non Destructive Evaluation (NDE) inspections due to their anisotropic material properties and often complex morphology.This Thesis develops an integrated framework …
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Fibre Structure Preservation during Carbon Fibre Reinforced Polymer Recycling – Characterisation and Parameter Prediction Model of the Recycling Process
In 2021, 24,000 tonnes of carbon fibre reinforced polymer (CFRP) waste worth USD 630 million was either landfilled or incinerated globally. The amount of CFRP waste is estimated to increase as a result of the ever-rising market demand. The CFRP market demand is due to the remarkable properties of …
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Behaviour of continuous concrete slabs reinforced with FRP bars. Experimental and computational investigations on the use of basalt and carbon fibre reinforced polymer bars in continuous concrete slabs.
An investigation on the application of basalt fibre reinforced polymer (BFRP) and carbon fibre reinforced polymer (CFRP) bars as longitudinal reinforcement for simple and continuous concrete slabs is presented. Eight continuously and four simply concrete slabs were constructed and tested to …
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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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Phase selective flame-retardant laminates
Fibre-reinforced polymer composites are widely used in structural applications due to their lightweight and high strength. However, their poor fire performance–particularly the flammability and softening of the polymer matrix at elevated temperatures–poses a significant safety concern. This thesis …
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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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A study of the feasibility of advanced hybrid thermoplastic composites for aerospace and automotive applications
… with high specific strength and stiffness. Fibre reinforced polymer materials have found increased application in the automotive and aerospace industries by virtue of their excellent specific properties, good corrosion resistance, toughness and fatigue properties. This study aimed at the …
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Ultra High Performance Fibre Reinforced Concrete Spandrel Cladding Panels in Façade Applications
… panel design using Ultra High Performance Fibre Reinforced Concrete (UHPFRC) with Glass Fibre Reinforced Polymer (GFRP) reinforcing bars are load tested and compared to analytical calculations and the results of an elastic finite element analysis. Five panels are load tested, three …
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An investigation of the feasibility of composite turbine compressor blades
… as to the feasibility of using a carbon fibre reinforced polymer (CFRP) composite to replace the titanium alloy (Ti-6Al-4V) for the manufacture of turbine compressor blades. These blades are used in the first compression stage of a gas turbine and suffer from high stresses at the roots …
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Analytical behaviour of FRP strengthened reinforced concrete beams under low velocity impact load incorporating rate dependant material constitutive models
Since the 1980s, the use of fibre reinforced polymer (FRP) composites in strengthening and rehabilitation of existing reinforced and pre-stressed structures has gained popularity. Versatility, high strength to weight ratio, corrosion resistance, excellent creep and fatigue behaviour, and ease of …
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