• Ganti Venkateswara Rao
• Javvadi Eswara Manikanta
• Dunna NarendraBabu

The fiber reinforced polymer composites are more widely used in the aerospace industries, automotive industries and other industrial applications, due to their applicable benefits like light weight, ease of processing, high stiffness, high strength etc.In the present project, the work aims to analysis of defects and mechanical properties of E-glass and Chopped strand mat E 450 GSM reinforced polymer composites. Composites are fabricated with combination of E-glass (woven roving) with Chopped strand mat E 450GSM and silicon powder in weight ratios respectively with respect to increase in the layers of E-glass fiber with epoxy as a matrix material using hand lay-up method because of its applicable benefits like ease of manufacturing, less consumption of time and economy of manufacturing. For finding the Defects and Mechanical properties conducted Non Destructive and Destructive Testing’s. The composite samples were made in the form of a plate. The fabricated composite materials in the form of plate were cut into profiles as per ASTM standards for Testing’s. The Tensile strength results of polymer composite materials improved with addition of E-glass in Epoxy matrix.The Impact test results of polymer composites improved with addition of 15gms SiC, E-glass and Chopped Strand Mat.The Hardness test results of polymer composites improved with addition of 10gms SiC, E-glass and chopped strand mat. In Ultrasonic test Chopped Strand Mat based Epoxy polymer composite have low Defects compared with other composites.

"ANALYSIS OF DEFECTS AND MECHANICAL PROPERTIES OF E-GLASS/CHOPPED STAND MAT REINFORCED POLYMER COMPOSITE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.107-110, April-2019, Available :http://www.jetir.org/papers/JETIR1904B18.pdf

"ANALYSIS OF DEFECTS AND MECHANICAL PROPERTIES OF E-GLASS/CHOPPED STAND MAT REINFORCED POLYMER COMPOSITE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp107-110, April-2019, Available at : http://www.jetir.org/papers/JETIR1904B18.pdf