Optimal electrode position for delamination detection in carbon fibre reinforced polymer composites using electric resistance change method
2019
Kovalovs, A., Riga Technical Univ. (Latvia) | Chate, A., Riga Technical Univ. (Latvia)
The electric resistance measure by the four probe method is used by various researchers for detection of the internal delamination in laminated carbon-fibre-reinforced polymers composite material. In the present study, the effect of spacing between probes on the crack detection efficiency has been investigated. The problem has been solved by the method of planning of the experiment and the response surface method by using the 2-D finite element model. The distance between the probes and the crack length has been selected as the parameter of the study. As a result, it was revealed, that in case of the crack growth, a decrease in the distance between the current and voltage probes has a greater effect on the detection of the crack than the change in the distance between only the current probes.
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