A Review on Damage Inspection Techniques in Composite Structures

Amit B. Patil; N. I. Jamadar

doi:10.37591/rtecs.v7i3.5401

Abstract

Damage occurred in structures or components can induce changes in its local and globalproperties. These changes in properties can affect the performance of component, andsometimes, it leads to a catastrophic failure. Hence, components/structures especiallycomposites need to be inspected regularly for damage. With extensive research in sensors anddata processing techniques various damage inspection techniques for composites are evolved.Damage inspection is part of Structural Health Monitoring (SHM) process. The paper providesa review of various damage inspection techniques used in SHM of composites. Differenttechniques available for damage inspection are ultrasonic techniques, acoustic emissiontechnique, vibration techniques and guided wave methods have been reviewed for theirprinciple of working and applications areas. The basic concept of lamb waves has beendiscussed in detail. With availability of new computational capabilities and advancement insensor technology, lamb wave techniques can a very optimum option in damage inspection.