Extension of the elasticity-conductivity cross-property connections to impedance of plane microcracked structural elements

The paper focuses on empirical extension of the cross-property connection between changes in elasto-static compliance and electrical resistance associated with plane microcracking in structural elements to changes in electrical impedance. Theoretical underlying principles of impedance are discussed and experimental measurements are taken to compare AC impedance, DC resistance and changes in resistivity predicted by the cross-property connection before and after subjecting test specimens to an edge cut. If the reactive components of impedance are sufficiently isolated, experimental results show a strong correlation between changes in real-part resistive impedance, directly extending the cross-property connection to impedance.