Simulation and experimental investigations on tribological characteristics of kenaf/thermoset composites

PhD Thesis


Chin, Chee Wen. 2013. Simulation and experimental investigations on tribological characteristics of kenaf/thermoset composites. PhD Thesis Doctor of Philosophy. University of Southern Queensland.
Title

Simulation and experimental investigations on tribological characteristics of kenaf/thermoset composites

TypePhD Thesis
Authors
AuthorChin, Chee Wen
SupervisorYousif, Belal
Institution of OriginUniversity of Southern Queensland
Qualification NameDoctor of Philosophy
Number of Pages183
Year2013
Abstract

Over the current decade, the use of natural fibres as an alternative to synthetic fibres such as glass and carbon has been growing due to the environmental and economic advantages of natural fibres. In this study, the mechanical and tribological performance of epoxy composites based on kenaf fibres was evaluated. The interfacial adhesion between the kenaf fibres and the epoxy matrix was sudied and the effect of NaOH treatment was considered. The tensile and flexural properties of the untreated and treated kenaf fibre reinforced epoxy (KFRE) were determined, and their fracture behaviour was examined using scanning electron microscopy (SEM). For the tribological experiments, the adhesive wear and frictional experiments were performed considering three different orientations of the fibres with respect to the sliding of the counterface. Different operating parameters were considered, such as applied loads (5–200 N), sliding distances (0–5 km) and sliding velocity (0–3.5m/s) under dry/wet contact conditions. The prediction of the frictional performance of the composites was modelled using artificial neural networks (ANN) considering different configurations. Furthermore, the effects of sand particle size, applied load and kenaf fibre orientation on the three-body abrasion (3B-A) wear behaviour of epoxy composites subjected to high stress were investigated. ABAQUS software was used to develop the 3B-A model aiming to assist in understanding the damage features on the composite surfaces, considering different particle angles, pressures, and fibre orientations.

Keywordsnatural fibre, synthetic fibre, economical, eviromental, tribological, performance, epoxy composites, kenaf fibres
ANZSRC Field of Research 2020309999. Other agricultural, veterinary and food sciences not elsewhere classified
409999. Other engineering not elsewhere classified
Byline AffiliationsSchool of Mechanical and Electrical Engineering
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