Optimum Position of Electrodes to Detect Delaminations in Composite Materials Using the Electric Resistance Change Method

Механика композитных материалов = Mechanics of Composite Materials 2019
Andrejs Kovaļovs, Sandris Ručevskis, Vladimirs Kulakovs, Miroslaw Wesolowski

The paper discusses a method for measuring changes in the electric resistance of a unidirectional carbon-fiber-reinforced plastic (CFRP) to detect an internal delamination. A numerical solution was obtained by the four-probe method for measuring the electric resistance. The influence of distance between electrodes on the efficiency of delamination detection was investigated. The problem was solved by the method of planning of experiments and constructing a surface response by using a 2D finite-element model. The distance between electrodes and the length of delamination were selected as parameters of the study. Distances between the internal and external electrodes for an effective detection of delaminations are determined.

Keywords
laminate, delamination, electrical resistance, finite element analysis, surface response method, method of planning experiments

Kovaļovs, A., Ručevskis, S., Kulakovs, V., Wesolowski, M. Optimum Position of Electrodes to Detect Delaminations in Composite Materials Using the Electric Resistance Change Method. Механика композитных материалов = Mechanics of Composite Materials, 2019, Vol. 55, No. 6, pp.1173-1184. ISSN 0203-1272.

Publication language
Russian (ru)