contact resistance, real area, electric potential, nuclear membrane


Purpose. To determine the contribution of the real contact spots distribution in the total conductivity of the conductors contact.

Methodology. The electrical contact resistance research was carried out on models. The experimental part of this work was done on paper with a graphite layer with membranes (the first type) and conductive liquids with discrete partitions (the second type).

Findings. It is shown that the contact electrical resistance is mainly determined by the real area of metal contact. The experimental dependence of the electrical resistance of the second type model on the distance between the electrodes and the potential distribution along the sample surface for the first type model were obtained. The theoretical model based on the principle of electric field superposition was considered. The dependences obtained experimentally and calculated by using the theoretical model are in good agreement.

Originality. The regularity of the electrical contact resistance formation on a large number of membranes was researched for the first time. A new model of discrete electrical contact based on the liquid as the conducting environment with nuclear membrane partitions was developed. The conclusions of the additivity of contact and bulk electrical resistance were done.

Practical value. Based on these researches, a new experimental method of kinetic macroidentation that as a parameter of the metal surface layer deformation uses the real contact area was developed. This method allows to determine the value of average contact stresses, yield point, change of the stress on the depth of deformation depending on the surface treatment.

Author Biographies

S. V. LOSKUTOV, Zaporizhzhia National Technical University

Sci.D, Professor, Professor of department of physics

M. O. SCHETININA, Zaporizhzhia National Technical University

laboratory assistant, department of aero-engine technologies

O. A. ZELENINA, Zaporizhzhia National Technical University

post-graduate student, department of physics


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How to Cite

LOSKUTOV, S. V., SCHETININA, M. O., & ZELENINA, O. A. (2018). CONTACT RESISTANCE MODELING. Electrical Engineering and Power Engineering, (1), 22–29.