TY - CONF A1 - Kloß, Heinz A1 - Wäsche, Rolf T1 - Analytical approach for wear prediction of metallic and ceramic materials in tribological applications T2 - ECOTRIB 2007 CY - Ljubljana, Slovenia DA - 2007-06-12 KW - Wear KW - Surface temperature KW - Activation energy KW - Simulation KW - Movable cellular automata (MCA) PY - 2007 VL - I SP - 223 EP - 234 PB - Slovenská Akadémia Vied CY - Ljubljana AN - OPUS4-14972 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kloß, Heinz A1 - Wäsche, Rolf T1 - Analytical approach for wear prediction of metallic and ceramic materials in tribological applications N2 - Wear mechanisms, as adhesion, abrasion, fatigue and tribochemical wear, are complex in their physical and chemical nature. A theoretical description and prediction of wear are in most cases still far from reality. It is, therefore, important to use test rigs before a practical application of a given material combination under tribological loading. On the other hand, model equations can be helpful for wear description, if a single wear mechanism is dominant. Under oscillating and continuous sliding contact conditions, equations for wear calculation are presented to describe running-in and stationary wear behaviour of metals and ceramics. By using shear energy density, real area of contact, flash temperature, activation energy and numerical simulations with the method of movable cellular automata (MCA), wear data were calculated and compared to experimental laboratory results. KW - Wear KW - Surface temperature KW - Activation energy KW - Simulation KW - Movable cellular automata (MCA) PY - 2009 U6 - https://doi.org/10.1016/j.wear.2008.04.034 SN - 0043-1648 VL - 266 IS - 3-4 SP - 476 EP - 481 PB - Elsevier CY - Amsterdam AN - OPUS4-18651 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kloß, Heinz A1 - Marwitz, Christian A1 - Breitkreiz, Maxim T1 - Reibung - eine mehrskalige Beschreibung unter Berücksichtigung von Modellbetrachtungen, experimentellen Ergebnissen und Simulationsrechnungen KW - Reibung KW - Adhäsion KW - Deformation KW - Rauheit KW - Simulation KW - Reaktionsschicht KW - Friction KW - Adhesion KW - Roughness KW - Reaction layer PY - 2010 SN - 0724-3472 VL - 57 IS - 6 SP - 14 EP - 18 PB - Expert Verlag CY - Renningen AN - OPUS4-23356 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Österle, Werner A1 - Dmitriev, A.I. A1 - Kloß, Heinz T1 - Does ultra-mild wear play any role for dry friction applications, such as automotive braking? N2 - Nanostructured third body films and/or storage of wear debris at the surfaces of the first bodies are deemed as prerequisites of sliding under ultra-mild wear conditions. Since such features have been observed experimentally on brake pads and discs, attempts were undertaken to study their sliding behaviour by modelling on the nanoscopic scale with an approach based on Movable Cellular Automata (MCA). The model rendered the possibility to study the influence of different nanostructures systematically and to assess the impact of different brake pad ingredients on the sliding behaviour, velocity accommodation and friction force stabilization at a sliding contact. Besides providing a review on previously published modelling results, some additional new graphs enabling better visualization of dynamic processes are presented. Although ultra-mild wear conditions were considered to be essential for achieving the desired tribological properties, transitions to mesoscopic and macroscopic wear mechanisms were studied as well. The final conclusion is that ultra-mild wear and corresponding smooth sliding behaviour play an important role during automotive braking, even though temporarily and locally events of severe wear may cause friction instabilities, surface damage and release of coarse wear particles. KW - Dry friction KW - Ultra-mild wear KW - Third body KW - MCA-model KW - Simulation PY - 2012 U6 - https://doi.org/10.1039/c2fd00117a SN - 1359-6640 SN - 1364-5498 VL - 156 IS - 0 SP - 159 EP - 171 PB - Soc. CY - Cambridge [u.a.] AN - OPUS4-26822 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -