Experimental Investigation of Polymer Matrix Composites Gears with Different Fiber Proportions

Author(s):  
K. Senthilnathan ◽  
G. Suresh ◽  
T. Srinivasan ◽  
S. Ilaiyavel ◽  
Rajesh Ravi ◽  
...  

Nowadays many of the conventional materials are effectively replaced by composite materials, because of their light weight to stiffness ratio. Gears are the very essential components in mechanical power transmission, and drive in the most industrial rotating machinery. Polymer gears are used in motion and power transmission under different loads and speeds. Gears are generally made from metallic materials but recently advanced polymeric materials were developed because of low cost, light weight, high strength and improved performance of the system. Nylon, polymers, acetal and derlin are the structural polymeric materials used in printing and robotics, mechanical machines such as washing machines, sugarcane crushing machine and gear pump that are used for power and speed transmission. The paper investigates the polymer matrix composites gear with different fiber proportions. The main objective is to make glass fiber reinforced polymer gears using epoxy resin with various proportions of E-glass CSM (5%, 10%, 15%, 20%). The work investigates the wear testing of polymer gears of different proportions with metal gear using gear testing rig. The paper focused on morphology of fractured surfaces of polymer gears using scanning electron microscope. Finally, the gear is modeled in Catia software and imported to Ansys for static structural application.

Author(s):  
Chanikya Kavvuru ◽  
M. L. S. Devakumar

Now a day’s Natural Fibres Composites owing importance due to its Bio degradability, Light weight & Strength etc ., This project aims to investigate Mechanical Property evaluation of Jute fibre Eglass fiber, without chemical treatment and applied an compression load on the Jute fibre layers to be in uniform and Unidirectional. To evaluate the mechanical properties and weights of specimens are2 and 3 layeers taken, Epoxy & Hardener constant for all specimens. The Specimens prepared by Hand layup technique and specimen cuts with Manual Hacksaw frame and applied smooth filing to avoid notches during cutting. Testing’s for Mechanical properties evaluation used are tensile, and 3-Point Flexural testing’s on computerized UTM (INSTRON 3369). Hardness and Impact tests also performed per the ASTM standards.


Author(s):  
Veerasimman Arumugaprabu ◽  
Deepak Joel Johnson R. ◽  
Pragatheeswaran R.

The present industry scenario focuses on green manufacturing, in terms of effective reuse and recycling of the industrial wastes generated in enormous amount while preparing the product. The wastes also act as a threat to the society by causing various kinds of pollution. Therefore, the proper safe disposal of the same is a very critical factor. Most of the industries struggled with the enormous disposal of these wastes and finding ways for reuse and disposal. In this chapter, one such way of reuse of these wastes for making composite product is explored. Industrial wastes such as flyash and ricehusk used as fillers of varying weight percentages, 6%, 8%, 30%, 40%, and 50%, wt%, respectively, are reinforced with matrix. The prepared composites were subjected to flexural studies to know the load withstand ability. Results show that the incorporation of both fly ash and rice husk industrial wastes as filler into the polymer matrix increases the flexural strength. In addition, a low-cost product with high strength and good performance is obtained by adding this waste.


2020 ◽  
Vol XXIII (1) ◽  
pp. 29-33
Author(s):  
Sorin Draghici

The steady increase in the use of composites has brought benefits in many areas. Polymer Matrix Composite (PMC) is a material consisting polymer (resin) matrix combined with a fibrous reinforcing dispersed phase. Polymer Matrix Composites are very popular due to their low cost and simple fabrication methods. This paper aims to validate thru finite element method the structural integrity of a composite gas turbine rotor and establish its benefits and disadvantages compared to a steel alternative. Composites provide the advantages of lower weight, greater strength and higher stiffness and the advantage of prepreg technology.


Recently, leading to its various attractive properties, Polymer matrix composites are suitable material in medical applications. This includes a light weight to high strength, a simple and complex shape easy to process. This paper describes the effect of Alumina, CaCO3 , and TiO2 reinforcements with bio polymer UHMWPE matrix. The samples were fabricated by injection molding machines with different particle reinforcement percentages. On prepared samples, various experiments have been carried out, viz tensile, bending, impact, hardness, and wear. Samples were developed according to the ASTM standard. Polymer matrix composites of 65% LDPE + 5% TiO2 + 15% Al2O3 + 15% CaCO3 is suitable biomaterial candidate. Thus, it can be used in an orthopedic approach applied on hard or soft tissues.


Author(s):  
Ru-Min Wang ◽  
Shui-Rong Zheng ◽  
Ya-Ping Zheng

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