Delamination Detection in Carbon Fibre Reinforced Composites Using Electrical Resistance Measurement

Baltic Polymer Symposium 2015

材料科学;化学

Kovalovs, A.^1 ; Rucevskis, S.^1 ; Kulakov, V.^2 ; Aniskevich, A.^2

Riga Technical University, Institute of Materials and Structures, Azenes Str. 16, Riga

LV-1048, Latvia^1

University of Latvia, Institute of Polymer Mechanics, Aizkraukles Str. 23, Riga

LV-1006, Latvia^2

关键词: Carbon fibre reinforced composites;    Composite laminate;    Delamination detections;    Electrical conductivity;    Electrical resistance measurement;    Four-probe methods;    Longitudinal direction;    Numerical investigations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/111/1/012010/pdf
DOI  :  10.1088/1757-899X/111/1/012010

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In the present study 2-D numerical analysis of strip-type laminated composite specimens with and without damage is considered and numerical investigation is carried out by using a finite element method. The surface and oblique resistances are numerically calculated according to the two-probe and four-probe methods. The electrical conductivity of the composite laminate in the longitudinal direction is constant, while the electrical conductivity in the through-thickness direction is used as a variable in the parametric study. The resistance change due to delamination for each case is estimated by comparing the obtained resistance with the corresponding resistance of the specimen without delamination. Applicability and effectiveness of the proposed method are investigated by using various lengths of a delaminated crack in the specimen.