6533b825fe1ef96bd1282746

RESEARCH PRODUCT

Delamination Detection in Carbon Fibre Reinforced Composites Using Electrical Resistance Measurement

Andrey AniskevichSandris RučevskisAndrejs KovalovsV. L. Kulakov

subject

Materials scienceElectrical resistance and conductanceElectrical resistivity and conductivityNumerical analysisComposite numberDelaminationOblique caseComposite materialFinite element methodParametric statistics

description

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.

https://doi.org/10.1088/1757-899x/111/1/012010