iosr-JMCE   Volume-9 ~ Issue-6

Paper Type	:	Research Paper
Title	:	Stress Analysis of FRP Composite Cylinder with Closed Ends
Country	:	India
Authors	:	C. Sasi Rekha, P. Ravi Kumar, K. Venkata Rao
	:	10.9790/1684-0960106

Abstract: Composite cylinders made of a polymer matrix such as epoxy reinforced with glass or carbon fibers possess extremely high strength. Proper modeling of FRP composite cylinder is very essential for many applications. FRP composite cylinders are commonly used in the aerospace, automotive, marine and construction industries. The present work is to study the variation of stressesat the top end, middle and bottom end portions of a composite cylinder by varying the diameter to thickness ratio(S) and fiber angle (θ).The four layered angle ply (θ0/-θ0/-θ0/θ0) composite cylinder is considered forthe present work and behavior of each portion (Top end, middle and Bottom end) is studied.For the present work composite cylinder is modeled in ANSYS and analysis was carried out using numerical software. It isfound thatthe increment of stress takes place linearly with respect to D/t ratio due to reduction in thickness of the layer.The critical fiber angle is 45⁰ to 60⁰ as it offers high resistance against axial and circumferential deformation in middle and end portions.

Keywords: Composite Cylinder, Lamina, Fiber Angle, FEM, ANSYS

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[6] M. T. Ahmadian and M. Bonakdar, "A new cylindrical element formulation and its application to structural analysis of laminated hollow cylinders", Finite Elements in Analysis and Design 44, 2008, pp. 617-630.

[7] V. Kranthi Kumar, K. Ravi Kumar, V. Bala Krishna Murthy, "Stress analysis of six layered FRP composite cylinder", International Journal of Applied Engineering Research, Volume 6, Number 19, 2011, pp. 2243-2250.

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[9] Rani Fayez El-Haj jar "Experimental study and analytical modeling of trans layer fracture in pultruded FRP composites", Doctor of Philosophy in the school of civil and Environmental engineering, Georgia institute of Technology, May 2004.

[10] S. Bhavya, P. Ravi Kumar, Sd. Abdul Kalam, "Failure Analysis of a Composite Cylinder", IOSR Journal of Mechanical and Civil Engineering, Volume Number 3, pp. 01-07

Paper Type	:	Research Paper
Title	:	Thermal conductivity Characterization of Bamboo fiber reinforced in Epoxy Resin
Country	:	India
Authors	:	E. Chandana, Dr. Syed Altaf Hussian
	:	10.9790/1684-0960714

Abstract: Over a past few decades composites, plastics, ceramics have been the dominant engineering material. The areas of applications of composites materials have grown rapidly and have even found new markets. The current challenge is to make the durable in tough conditions to replace other materials and also to make them cost effective .This has resulted in development of many new techniques currently being used in the industry. While the use of composites it is clear choice in many applications but the selection of material will depend on the factor such as working life, lifetime requirement, complexity of product shape produced, saving the term cost. The availability of natural fiber is abundances and also they are very inexpensive when compared to other advanced manmade fibers. The primary advantage of natural fibers are low density, low cost, biodegradability, acceptable specific properties, less wear during extracting as well as manufacturing composites and wide varieties of natural fibers are locally available. The main focus of this investigation is to determine the thermal conductivity of bamboo fiber reinforced in epoxy resin composites. The test samples were prepared as per ASTM standards using simple hand-layup technique at different fiber weight fractions (10%, 20%30%, 40%50%, 60%). Thermal conductivity (K) of the composites material were determined experimentally and is validated by the results obtained by rule of mixture, E-S model and also by finite element modeling

Keyword: Bamboo fiber, Epoxy, Thermal conductivity, guarded heat flow.

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Paper Type	:	Research Paper
Title	:	Performance Analysis of HIGHER ALCOHOL/GASOLINE BLENDS as a fuel in 4-stroke SI engine.
Country	:	India
Authors	:	Priyanka A. Taksande, Dr. S. C. Kongre
	:	10.9790/1684-0961516

Abstract: An experimental investigation of combustion characteristics of higheralcohols/gasoline (UTG 96) blends is presented. Lower alcohols (methanol and ethanol)have been used in the past as fuel extenders by mixing them with gasoline, but relativelylittle work has been reported on higher alcohols (propanol, butanol, and pentanol).

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Paper Type	:	Research Paper
Title	:	Modeling & Analysis of Centrifugal Blower using Composite Material
Country	:	India
Authors	:	Y. Srinath, K. Monhar Reddy
	:	10.9790/1684-0961725

Abstract: Centrifugal blowers are used extensively for on-board naval applications which have high noise levels. The noise generated by a rotating component is mainly due to random loading force on the blades and periodic iteration of incoming air with the blades of the rotor. The Contemporary blades in naval applications are made up of Aluminium or Steel and generate noise that causes disturbance to the people working near the blower. The present work aims at observing the choice of E-Glass as an alternative to metal for better vibration control. E-Glass, known for their superior damping characteristics are more promising in vibration reduction compared to metals. The modeling of the blower was done by CATIA V5 R19. The blower is meshed with a three dimensional hex8 mesh is done using HYPERMESH 10. It is proposed to design blower with Epoxy glass, analyze its strength and deformation using FEM technique. In order to evaluate the effectiveness of E-Glass and metal blower using FEA packaged (ANSYS). Modal analysis is performed on both Aluminium and E-Glass blower to find out first five natural frequencies.

Keywords: CATIA V5 R19, HYPERMESH 10, ANSYS

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