International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 04 | Apr -2017
p-ISSN: 2395-0072
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EXPERIMENTAL ANALYSIS OF HYBRID CARBON FIBER COMPOSITE SPECIMEN Nithin Prasad1, Adarsh Ramachandran2 M Tech Student, Department of Mechanical Engineering, Sree Narayana Institute of Technology, Adoor, Kerala, India 2 Assistant Professor, Department of Mechanical Engineering, Sree Narayana Institute of Technology, Adoor, Kerala, India 1
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Abstract - This paper focused on experimental study of
the idea of hybrid composite specimens are implemented. For that, E-glass and Kenaf reinforcements are combined with carbon fiber reinforcement because these materials are cheaply available with reasonable cost and also have good strength properties. The E-glass and Kenaf fibers were preferred because of its better tensile strength compared to other materials and of low cost. Kenaf is a natural fiber made from hibiscus stem, found in African forests mostly have higher tensile strength corresponds to that of other natural fibers presently available and since it is natural fiber, cost is comparatively low. Also the matrix used was mixture of epoxy resin L-12 (Lapox 12, based on bisphenol A) and 407 hardener (low density filler).
hybrid composite specimens prepared according to ASTM standards. Composites are the formed by the combination of reinforcement and matrix, which exibits better properties compared to that of individual components. Because of its low density characteristics, composites has got a wide range of applications. Composites are classified mainly as natural and artificial ones depending on the type of reinforcement used. The cost of artificial ones are quite higher compared to natural ones, but because of their better strength, corrosion resistance and less maintenance requirements they are mostly preferred. The specimens are prepared by means of hand lay-up process considering ASTM D 3039 and ASTM 790 standards. UTM tensile load test as well as flexure (3 point bending) tests are conducted on the prepared specimen. From the results, better material is selected for further applications.
Table -1: Material Properties Properties
Key Words: Hybrid, Reinforcement, Matrix, Hand lay-up.
Density (g/cm3)
1.INTRODUCTION
Elastic Modulus (GPa) Tensile Strength (MPa) Specific Stiffness (GPa)
Composites (also known as composition material) are combination of two or more constituent materials called as matrix and reinforcement, when combined together produce a material having different characteristics than that of individual components. They are combined in such a way that they remain separate and distinct within the finished structure because they don’t fully merge or dissolve into one another. Composites can be preferred for so many reasons: because of its high strength, low density as well as good corrosion resistance compared to that of traditional materials.
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Impact Factor value: 5.181
E glass Fiber 2.55
Kenaf Fiber 1.45
230-240
71
53
4000
1700
930
128-170
28
37
2. HAND LAY-UP PROCESS Hand Lay-up process was the method employed for the hybrid composite formation. It is the simplest method for the preparation of composites. The infrastructural requirement is also minimal for this method. The processing steps are quite simple and are follows. Initially, put thin plastic sheets as the base to get good surface finish of the product. Reinforcement in the woven mats or chopped strand mats form are cut as per the required size of 20 x 20 mm.
Depending on the type of reinforcement, composites can be classified as natural and artificial ones. Natural composites are generally preferred because of their cheap availability as well as low cost. But considering the strength part, artificial reinforcements exibits very good properties than natural ones. Among artificial fibers, carbon fibers exibits very high strength properties compared to other materials, but the high cost of carbon fiber makes it difficult for widening its application. In order to make it economical,
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