Mechanik, Fachgebiet Systemdynamik und Reibungsphysik

Dr.-Ing. habil. Roman Pohrt

Dr.-Ing.habil.

Roman Pohrt

roman.pohrt@tu-berlin.de

Wissenschaftlicher Werdegang

1991geboren in Rostock
2005-2010Studium der Physikalischen Ingenieurwissenschaften an der TU Berlin
2007-2010Studienfachberater an der Fakultät V, TU Berlin
seit 2010Wissenschaftlicher Mitarbeiter am FG Systemdynamik und Reibungsphysik der TU Berlin
2013Promotion zum Thema "Normal stiffness of multiscale rough surfaces in elastic contact"

Forschungsinteressen

Trockene und geschmierte Kontaktprobleme
Adhäsion
Kontaktsteifigkeit, elektrische Kontakte, thermische Kontakte
Partielles Gleiten
Oberflächencharakterisierung, Fraktale
Theoretische Mehrskalen-Kontaktmechanik
Hochbelastete Kontakte, Rad-Schiene Kontakt
Elastohydrodynamik
Zwischenschichten, dritter Körper

Simulationsmethoden

Randelementeverfahren
Mehrgitterverfahren
Multilevel-integration
Optimierung
Parallele Numerik
Multiphysics

Publikationen

Phys. Rev. Lett. 108, 104301 (2012) 4p. "Normal Contact Stiffness of Elastic Solids with Fractal Rough Surfaces" R. Pohrt, Valentin L. Popov

Phys. Rev. E 86, 026710 (2012) 7p. " Normal contact stiffness of elastic solids with fractal rough surfaces for one- and three-dimensional systems" Roman Pohrt, Valentin L. Popov, Alexander E. Filippov

Physical Mesomechanics, 15, 5-6 (2012) pp. 275-279 "Investigation of the dry normal contact between fractal rough surfaces using
the reduction method, comparison to 3D simulations" R. Pohrt, V. L. Popov

Advances in Tribology, Article ID 974178 (2013) 4p. "Contact mechanics of rough spheres: Crossover from fractal to Hertzian behavior", Roman Pohrt, Valentin L. Popov

Methode der Dimensionsreduktion in Kontaktmechanik und Reibung, Springer (2013), Buchkapitel "Normalkontakt mit rauen Oberflächen", Seiten 145-167

Methode der Dimensionsreduktion in Kontaktmechanik und Reibung, Springer (2013), Buchkapitel "Kopplung an Mikroskala", Seiten 215-219

Scientific reports, 3, 3293 (2013) 6p. "Contact stiffness of randomly rough surfaces" R. Pohrt, V.L. Popov

Facta Universitatis No 2 (2013) pp. 123-131 "Mixed and Boundary Lubrication in Rolling Contact: Experiment and Simulation", Li Qiang, Roman Pohrt

Dissertation (2013) "Normal stiffness of multiscale rough surfaces in elastic contact", TU Berlin

Wear 309, 1-2 (2014) pp. 256-258 "Maximum Micro-Slip in Tangential Contact of Randomly Rough Self-Affine Surfaces", B. Grzemba , R. Pohrt, E. Teidelt, V. L. Popov

Scientific reports, 4, 5178 (2014) 6p, "Partial-slip frictional response of rough surfaces", M. Paggi, R. Pohrt, V.L. Popov

Physical Mesomechanics 17 (4), 334-340, "Complete boundary element formulation for normal and tangential contact problems", R.Pohrt, Q. Li

Wear 326-327, (2015) p84-87 "Plastic properties of polytetrafluoroethylene (PTFE) under conditions of high pressure and shear", J. Starcevic, R. Pohrt, V.L. Popov

Facta Universitatis 13/1 (2015) p3-10, "Adhesive Contact simulation of elastic solids using local mesh-dependent detachment criterion in boundary elements method", R. Pohrt, V.L. Popov

Zeitschrift für Angewandte Mathematik und Mechanik (2016), "The extension of the method of dimensionality reduction to non-compact and non-axisymmetric contacts", I. Argatov, M. Heß, R. Pohrt, V.L. Popov

Facta Universitatis 14/2 (2016) p159-168, "reduction of residual shear stress in the loaded contact using friction hysteresis" A. Kraft, R. Pohrt

Proc. R. Soc. A 472/2191, 20160218 (2016), "Johnson-Kendall-Roberts adhesive contact for a toroidal indenter", I. Argatov, Q. Li, R. Pohrt, V.L. Popov

Journal of Strain Analysis for Engineering Design 51/4 (2016) p247-255 "General procedure for solution of contact problems under dynamic normal and tangential loading based on the known solution of normal contact problem", V.L. Popov, R Pohrt, M Heß

Facta Universitatis 15/2 (2017) p295-306, "Simulation of friction dissipation under biaxial tangential loading with the Method of Dimensionality Reduction", A.V. Dimaki, R. Pohrt, V.L. Popov

Friction 5/3 (2017) p308-325 "Strength of adhesive contacts: Influence of contact geometry and material gradients", V.L. Popov, R. Pohrt, Q. Li