International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 04 Issue: 07 | July -2017
p-ISSN: 2395-0072
www.irjet.net
Overview on Comparative Study of Characterization of Properties of Natural Fiber Composites. Pravin R. Patil 1, Prof. Ganesh A. Kadam 2 Department of Mechanical Engineering, PG Student (Mechanical Design- II), SKN Sinhgad Institute of Technology and Science, Lonavala Maharashtra India. 2 Department of Mechanical Engineering, Asst.Prof. SKN Sinhgad Institute of Technology and Science, Lonavala Maharashtra India ---------------------------------------------------------------------***---------------------------------------------------------------------
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ABSTRACT: Currently all the automotive companies tried for reduction of weight of vehicle in order to improve the efficiency and simultaneously to conserve natural resources. Composite material is the combination of two or more materials which are having same or different properties. In recent days, automobile and construction industries are focus on the light weight, environmental friendly materials with good mechanical properties then Natural Fiber Composites/Bio composites are used. There are different composite materials used in many applications and in engineering structures. In this study use the Natural Fiber Composites/Bio composites. The composites such as Flax, (Flax+Glass) and (Flax+Carbon) are taken into consideration. In this, study and investigation of the all parameters in mechanical properties of above composites and Comparison of these parameters of composites.
Classification of Composite Materials Composite materials can be classified as
Technologically, the most important composites are those in which the dispersed phase is in the form of a fiber. The Design of fiber-reinforced composites is based on the high strength is the ratio between strength and density. Specific modulus is the ratio between strength and density. Specific modulus is the ratio between modulus and density. Fiber length has a great influence on the mechanical characteristics of a material. The fibers can be either long or short. Long continuous fibers are easy to orient and process, while short fibers cannot be controlled fully for proper orientation. Long fibers provide many benefits over short fibers. These include impact resistant, low shrinkage, improved surface finish and dimensional stability. However short fiber provide low cost are easy to work with and have fast cycle time fabrication procedures. The principal fibers in commercial use are various types of glass, carbon, graphite, Kevlar. All these fibers can be incorporated into a matrix either in continuous lengths or in discontinuous lengths as shown in the Fig. The matrix material may be a plastic or rubber polymer, metal or ceramic. Laminate is obtained by stacking a number of thin layers of fibers and matrix consolidating them to the desired thickness. Fiber orientation in each layer can be controlled to generate a wide range of physical and mechanical properties for the composite laminate.
Keywords: Composite, Mechanical properties, Natural fiber, Flax-Glass, Flax-Carbon INTRODUCTION COMPOSITE MATERIALS The advanced composite materials such as graphite, carbon, Kevlar and Glass with suitable resins are widely used because of their high specific strength (strength/density) and high specific modulus (modulus/density). The automotive industry is exploiting composite material technology for structural components construction in order to obtain the reduction of the weight without decrease in vehicle quality and reliability. It is known that energy conservation is one of the most important objectives in vehicle design and reduction of weight is one of the most effective measures to obtain this result. Actually, there is almost a direct proportionality between the weight of a vehicle and its fuel consumption, particularly in city driving. Composites consist of two or more materials or material phases that are combined to produce a material that has superior properties to those of its individual constituents. The constituents are combined at a macroscopic level and or not soluble in each other. The main difference between composites, where as in alloys, constituent materials are soluble in each other and form a new material which has different properties from their constituents.
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Natural Fiber Natural fibers are in automobile and construction industries are focusing on the light weight, environment friendly materials with good mechanical properties. Manufacturing of other fibers and end of life disposal are the major problem to the environment. To overcome these problems, natural fibers are used to manufacture composites. Natural fiber materials are biodegradable CO2 neutral and nonabrasive.  Flax Fiber
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