Logo of the S.P. Timoshenko Institute of Mechanics of the NAS of UkraineOfficial websiteS.P. Timoshenko Institute of MechanicsNational Academy of Sciences of Ukraine
УкраїнськаEnglish
Photo: Rostyslav M. Martyniak

Staff profile

Rostyslav M. Martyniak

Мартиняк Ростислав Михайлович

Position: Leading Research Scientist

Department: Department of Fracture Mechanics of Materials

Academic degree: Doctor of Sciences in Physics and Mathematics

Academic title: Professor

Write an emailDepartment page
Research profile

Research areas

  • Contact interaction of bodies with textured surfaces.
  • Fundamentals of the theory of mechanothermodiffusive interaction of structures with near-surface inhomogeneities.
  • Mathematical models of contact between bodies with local surface irregularities and thin boundary layers in the presence of an intersurface medium, including a physical-mechanical model of contact through thickness-inhomogeneous interlayers.
Academic activity

Professional activity

Professional activity is connected with the S.P. Timoshenko Institute of Mechanics of the NAS of Ukraine.

Selected publications

Publications

Articles in peer-reviewed journals

  1. Martynyak R. M., Mykytyn M. M., Malanchuk N. I. Thermomechanical contact of an elastic half-space and a rigid base under the action of a circular heat sink. Materials Science. 2025.
  2. Streliaev Y. M., Martynyak R. M. Partial Slipping of Flat Punch in Thermomechanical Contact with Elastic Half-Space. International Applied Mechanics. 2024. Vol. 60, no. 2. P. 212–220.
  3. Kozachok О. P., Martynyak R. M., Malanchuk N. I. Contact Interaction of Bodies with Flat Surfaces Under Local Wear Along a Streak. Strength of Materials. 2025. Vol. 57, no. 5. P. 939–946.
  4. Malanchuk N. I., Martynyak R. M., Kozachok О. P. Fretting wear of elastic half-spaces with a groove in a frictional slip zone. Materials Science. 2025. Vol. 61, no. 5. P. 706–712.
  5. Streliaiev Y., Martynyak R. M., Chumak K. A. Thermomechanical Slip in Elastic Contact between Identical Materials. Acta Mechanica et Automatica. 2021. Vol. 15, no. 4. P. 187–192.