Analyzing objects in images for estimating the delamination influence on load carrying capacity of composite laminates.

Luis Miguel Pereira Durão, António G. Magalhães, João Manuel R. S. Tavares, António Torres Marques

Abstract

The use of fiber reinforced plastics has increased in the last decades due to their unique properties.
Advantages of their use are related with low weight, high strength and stiffness. Drilling of composite plates can
be carried out in conventional machinery with some adaptations. However, the presence of typical defects like
delamination can affect mechanical properties of produced parts. In this paper delamination influence in bearing
stress of drilled hybrid carbon+glass/epoxy quasi-isotropic plates is studied by using image processing and
analysis techniques. Results from bearing test show that damage minimization is an important mean to improve
mechanical properties of the joint area of the plate. The appropriateness of the image processing and analysis
techniques used in the measurement of the damaged area is demonstrated.

Keywords

Drilling; Delamination; Laminates; Radiography; Ultrasonic Scanning; Image Analysis; Image Drilling; Delamination; Laminates; Radiography; Ultrasonic Scanning; Image Analysis; Image Segmentation; Regions Analysis

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