Effect of dents in laminated carbon composite beams on modified anisotropic electric potential analysis. (15th September 2018)

• Record Type: Journal Article
• Authors: Todoroki, Akira; Yamane, Takuya
• Is Part Of: Composite structures. Volume 200(2018)
• Page Start: 340
• Page End: 345
• Publication Date: 2018-09-15
• Subjects: Laminated composites -- Carbon -- Electric current -- Dent; Composite construction -- Periodicals; Composites -- Périodiques; 624.18
• DOI: 10.1016/j.compstruct.2018.05.154
• Languages: English
• ISSNs: 0263-8223

Abstract

Abstract: Because carbon fiber reinforced polymer (CFRP) laminated composites have electric conductivity, damage monitoring was performed using electrical resistance changes. The authors previously proposed an anisotropic electric-potential function method to calculate the electric-potential field of laminated CFRP composites. The method, however, did not deal with the effects of dents. The present study deals with the effects of dents on the anisotropic electric-potential function method. The dent causes an electric conductivity increase in the through-thickness direction. The increase was modeled and applied to a beam-type specimen. The results were compared with the finite-element method results, and the method using equivalent conductivity in the through-thickness direction was confirmed to be effective.