Experimental Investigation of Repair of Glass Epoxy Composite With Edge And Center Crack By Epoxy Resin

Articles in Press

Document Type : Special Issue: Mechanics of Advanced Fiber Reinforced Composite Structures

Authors

1 Simcrash Center, HINDUSTAN INSTITUTE OF TECHNOLOGY AND SCIENCE

2 HINDUSTAN INSTITUTE OF TECHNOLOGY AND SCIENCE

Abstract

The aerospace and automotive industries widely use composite materials due to their weight-to-strength ratios. One of the most significant problems with composites is repair and maintenance. This study attempts to repair glass epoxy composites. The repair process involves two stages: 1)optimization of position of hole 2) repair work. To optimize the repair techniques, two distinct holes were performed: 1) at the centre of the specimen and 2) at the edges of the specimen. As a result, the hole drilled at the centre gives higher strength than the hole drilled at the edges. After the optimization, samples were repaired with a single hole in the centre and peak loads of 60% and 90%. The cracked and delaminated areas were repaired with epoxy/hardener. The repaired samples were subjected to a three-point bending test, and the results are compared with the Neat GFRP samples. The results show that the curves of the repaired samples aligned with both the post and the residual flexural strength. The residual flexural strength of the 60% and 90% peak-loaded repaired samples retains about 47% and 76%, respectively.

Keywords

Main Subjects

Mechanics of Advanced Composite Structures

Articles in Press, Accepted Manuscript
Available Online from 26 August 2024

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