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
Finite Element Analysis of Skate Board Made of Bamboo Composite Irshad Ahmed Munshi1, M.V.Walame2 1 M-Tech
(Mechanical Design) student, Vishwakarma institute of technology, Pune, India. Dept. of Mechanical Engineering, Vishwakarma institute of technology, Pune, India. ---------------------------------------------------------------------***--------------------------------------------------------------------2Professor,
Abstract - Although synthetic fibre based composite
flexural modulus and strength [3]. C.S.Verma investigated tensile, compressive and flexural strength of bamboo strips selected from different regions of culm [4]. V.M Charair developed a bamboo composite from bamboo strips. He determined strength and stiffness experimentally and compared it with analytical values[5]. José Jaime García et al adopted a simple test method in his study to determine the circumferential Young’s modulus, the radial-circumferential Poisson’s ratio and the circumferential-axial shear modulus of bamboo culm using ring specimens[6].
material became popular because of their high strength and low weight however energy required for fibre extraction is very high, they are non-degradable and costly. Because of these demerits there is need of development of biodegradable and cost efficient composite materials. In the recent past natural fibre reinforced composite material has gained significant attention because of their high specific properties bio degradability and low cost. In this paper bamboo based composite material has been fabricated by hand layup method. Flexural strength of composite for different volume fraction is determined by three point bend test .Maximum flexural strength of 195.5Mpa was observed for 50% bamboo volume in composite. The Finite element analysis of skate board made up of bamboo composite is carried out by using HyperMesh and Optistruc. The maximum stress in skate board is within the permissible range of bamboo composite. The cost efficient bamboo composite with comparable mechanical properties indicates the possibilities to use it as a promising alternative to synthetic fiber based composites.
In this work bamboo strips were used in composites instead of extracted bamboo fibers .Unidirectional bamboo composite was fabricated by hand layup technique .Flexural strength and modulus was determined by flexural test. Results obtained from testing were used to find four elastic constant of composite .By taking these elastic constants FEA skate board made of bamboo composite was carried out in HyperMesh. and Optistruct. 2. MATERIALS AND METHOD
Key Words: Bamboo Composite, Strips, flexural strength Volume fraction, Elastic constants.
Mature Bamboo was purchased from local markets in Maharashtra, India. The bamboo culm had an average length of 7 m, diameter at bottom and at top was 89 mm and 35 mm respectively. The thickness of the wall was 25mm at the bottom and 8 mm at the top. Bamboo strip was cut circumferentially because fine strip can be cut in this direction. Average dimensions of intermodal strip are 300mm X 11mm X 0.5mm.After cutting bamboo strip they were dried in sun light for one week. Density of bamboo culm is 0.8 g/cm3 is taken from literature. [7]
1. INTRODUCTION: Now a day the use of synthetic fibre based composite materials is increasing continuously. Total amount of glass fibre reinforced composite consumed in India was 25 thousand tons in year 2000[1]. Synthetic fibres are nondegradable and ten times costlier than natural fibre [1]. In the recent past natural fibre have gained popularity in industries due to their low density and high strength. A significant amount of research has been carried out on the development of natural fibers based composite materials. Bamboo is one of the most popular natural fibre. India contributes to 34% of world bamboo resources [2]. Bamboo is one of the fastest growing plants in world and achieves its complete mechanical properties within 3-4 years [2]. Bamboo has the highest mechanical strength in all natural fibre and lowest density, of 0.9 g/cm3, compared with 1.45 g/ cm3 of jute and 2.5 g cm3 of fiberglass [3]. Though properties are inferior to fiber glass, but specific properties are comparable.
The epoxy (520 F) with curing agent/hardener (EH 408) was used as matrix for preparation of composites. Mechanical and physical properties of epoxy provided by manufacturer are shown in table 1. Curing time at room temperature was 24 hours. Suggested mixing ratio of epoxy and hardener is 100:50 by weight Table 1: Properties of epoxy
There number of researchers worked on bamboo composite. Shah Huda et al prepared light-weight composite with bamboo strip. He conducted three point bend test by varying bamboo strip thickness and width to determine its effect on
© 2017, IRJET
|
Impact Factor value: 5.181
|
Young’s modulus
3700 Mpa
Ultimate tensile strength
58 Mpa
Poisson’s ratio Density
0.33 1.1g/cm3
ISO 9001:2008 Certified Journal
| Page 2677