Title: RECENT DEVELOPMENTS IN NON-DESTRUCTIVE INSPECTIONS AND REPAIR OF LAMINATE COMPOSITES
Abstract: Fiber reinforced polymeric composites are very attractive for many industries, such as aerospace, wind energies, defense and automotive; thus, the availability of efficient and cost effective technologies to evaluate the damages and repair for improved life extension are becoming critically requirement. Internal and external damages are very common in composite structures, which form during the manufacturing, transportation, assembly and service. A number of non-destructive inspection (NDI) techniques are used to detect those damages. The imaging has many advantages over the repair process for the exact locations of the damages and carving for repair. Hidden damages without any repair are major potential dangers to the composite structures, which may lead to catastrophic failures. The present study reviews a number of recent developments in 2D and 3D imaging techniques, location of the damages, removing the damage areas and repairing the damage parts properly for improved service life. This study also summarizes key scientific gaps and suggests for appropriate steps to further enhance the usefulness of the repairing technology. In addition to evaluation and repairing processes, self-healing technologies can be considered as alternative approaches for better performances of the composites. Finally, the major challenges and research opportunities in composite repair technologies are explained in detail for the composite industries.
Authors: Eylem Asmatulu, and Naif Alzahrani
Conference: CAMX 2017 –Orlando