Title: Damage analysis of carbon/epoxy plates after drilling

Authors: Luis Miguel Pereir Durao, Joao Manuel R.S. Tavares, Antonio Goncalves de Magalhaes, Antonio Torres Marques, Antonio Paulo M. Baptista

Addresses: Centro de Investigacao e Desenvolvimento em Engenharia Mecanica, Departamento de Engenharia Mecanica, Instituto Superior de Engenharia do Porto, R. Dr. Antonio Bernardino de Almeida, 431 – 4200-072, Porto. ' Faculdade de Engenharia da Universidade do Porto, Departamento de Engenharia Mecanica e Gestao Industrial, Instituto de Engenharia Mecanica e Gestao Industrial, Rua Dr. Roberto Frias, s/n – 4200-465, Porto. ' Centro de Investigacao e Desenvolvimento em Engenharia Mecanica, Departamento de Engenharia Mecanica, Instituto Superior de Engenharia do Porto, R. Dr. Antonio Bernardino de Almeida, 431 – 4200-072, Porto. ' Faculdade de Engenharia da Universidade do Porto Departamento de Engenharia Mecanica e Gestao Industrial, Instituto de Engenharia Mecanica e Gestao Industrial, Rua Dr. Roberto Frias, s/n – 4200-465, Porto. ' Faculdade de Engenharia da Universidade do Porto Departamento de Engenharia Mecanica e Gestao Industrial, Instituto de Engenharia Mecanica e Gestao Industrial, Rua Dr. Roberto Frias, s/n – 4200-465, Porto

Abstract: Drilling of composites plates normally uses traditional techniques but damage risk is high. NDT use is important. Damage in a carbon/epoxy plate is evaluated by enhanced X-rays. Four different drills are used. The images are analysed using Computational Vision techniques. Surface roughness is compared. Results suggest strategies for delamination reduction.

Keywords: drilling composites; damage; delamination; computer vision; image processing; image analysis; composite plates; surface roughness; carbon-epoxy plates.

DOI: 10.1504/IJMPT.2008.018983

International Journal of Materials and Product Technology, 2008 Vol.32 No.2/3, pp.226 - 242

Published online: 27 Jun 2008 *

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