The effect of notches on the strength of coir – reinforced cashew nut shell resin composite
Table Of Contents
<p> Certification – – – – – – – – i<br>Dedication – – – – – – – ii<br>Acknowledgment – – – – – – iii<br>Abstract – – – – – – – iv<br>Table of Contents – – – – – – v<br>List of tables – – – – – – – vi<br>List of figure – – – – – – – vii<br>1.0 Introduction – – – – – – 1<br>2.0 Literature Review – – – – – 4<br>3.0 Materials, Equipment and methods – – 15<br>4.0 Results – – – – – – – 32<br>5.0 Discussion of Results – – – – 37<br>6.0 Conclusions and Recommendations – – 42<br>References – – – – – – – 44<br>7<br>LIST OF TABLES<br>Table 4.1 – – – – – 32<br>Table 4.2 – – – – – 33<br>Table4.3 – – – – – 33<br>Table4.4 – – – – – 34<br>Table 4.5 – – – – – 34<br>Table 4.6 – – – – – 35<br>Table4.7 – – – – – 35<br>Table 4.8 – – – – – 36<br>Table 4.9 – – – – – 36 <br></p>
Project Abstract
<p> </p><p>The effect of notches on the strength of Coir – reinforced cashew<br>nut shell resin composite was investigated. Composite laminates<br>with six different fibre contents (0,0,1, 0.2, 0.3, 0.4 and 0.5 volume<br>fractions) were fabricated using the hand lay – up moulding<br>method. A static fracture testing equipment was designed and<br>fabricated in the absence of a functional fracture testing machine.<br>Static fracture tests were performed on the notched composites<br>with different notch depths and locations. The 0.4 volume fraction<br>of the fibre was determined as the optimum level of fibre necessary<br>for reinforcing the composites for maximum strength. The fracture<br>strength of the composite increased with decreasing notch depth.<br>The strength of the laminates also increased with the notch<br>locations. Again, varying both notch depths and locations had no<br>effect initially on the strength of the composite.</p><p><strong> </strong></p> <br><p></p>Project Overview
<p> 1.0 INTRODUCTION<br>Natural fibre is commonly regarded as waste and is disposed<br>by burning or on landfills and this practice contributes to pollution.<br>In order to preserve the environment, it is necessary to find<br>economically feasible solutions to natural fibre as recyclable<br>materials which could be used for different applications, ranging<br>from handicrafts to reinforcement elements for composite<br>materials (Sukumaran, et al, 1982).<br>Coconut palm tree (coco nucifera) is a multivalent fibre<br>producer. Its fibre can be extracted from any part of the leaves, the<br>long leaf sheath, the midribs of the leaves, the balk of the stalk and<br>the fruit crust. Coir fibres are extracted from both the exocarp and<br>the endocarp of the fruit. These coir fibres are currently being used<br>in the form of mats in applications such as substrates for<br>ornamental plants, soil support and seat cushion for automobiles.<br>Since the application of natural fibres is of current interest<br>around the world and a commercial potential market already exists,<br>10<br>the present work investigates the effect of notches on the strength<br>of coir-reinforced cashew nut shell resin composite.<br>1.1 RELEVANCE OF THE RESEARCH<br>The fibre from the coconut fruit crust that is nowadays<br>disposed as an unwanted waste is a recyclable potential alternative<br>to be used in polymeric matrix composite materials like ceiling<br>boards or gypsum panels.<br>The effect of notches on the strength of the composite is<br>critical to its application in engineering systems and this is the<br>primary aim of this study.<br>Therefore, the objectives of this study are:<br>1. To determine the effect of notch depths and locations on the<br>strength of the composite.<br>2. To determine the optimum level of fibre necessary for<br>reinforcing the composite. <br></p>Blazingprojects Mobile App
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