Experimental Investigation for Finding Defects on Epoxy-Coated Cantilever Beam Using Optical Method

This research paper is concentrated mainly on finding the defects in epoxy-coated cantilever beam surface using an optical method. The work primarily focuses on the application of the non-destructive method on a material which is non-reflective in nature and stainless steel material is chosen for the study. Identification of defects either a void or an inclusion in the epoxy resin coating applied on the cantilever beam can be identified using the grating lines on the specimen when it is kept under the illumination of He–Ne laser light and the application of lateral load on it.