Multiscale Contact Mechanics and Tribology

Uitgebreide vaknaam	Multiscale Contact Mechanics and Tribology
Leerdoelen	At the end of the course, the student is able to: 1. Record and reproduce presented material; appraise and compare theories and models; judge the validity of theories in modelling specific applications. 2. Reproduce solutions from literature; derive, solve, compare and analyze results; assess, summarize and choose appropriate theories and models. 3. Discuss and assess the presented material and homework assignments; practice and assess learning. 4. Practice and demonstrate knowledge of requisite programming and modelling skills. Apply these to the solution of complex tribological problems. 5. Practice and demonstrate knowledge of requisite programming and modelling skills.
Omschrijving	Tribology is the study of interfaces in relative motion. The need to control friction is not new; however, its systematic study is relatively recent while its precise nature is still not fully understood. This course aims to introduce students to tribology – the study of contact, friction, lubrication and wear – starting from the traditional definitions and transitioning to recent theories and models used to understand the fundamentals of tribology and enable the design, analysis and optimization of devices over multiple scales. Part of the course will deal with classical (macroscale) definitions and models of contact, friction and lubrication including, but not limited to: • Hertzian contact and Coulomb friction; • Hydrodynamic and elastohydrodynamic lubrication; and, • Wear. Example applications will be utilized to demonstrate these themes with analytical solutions as well as representative experimental and simulation results. Subsequently transitioning to smaller scales, the course will look at the role of surface topography in contact and friction and investigate the importance of adhesion as a function of scale and roughness. Theories (and models) to be discussed are, for example: • Short and long range atomic interactions; • Roughness characterization (statistical, numerical, fractal); • Sphere-on-flat models with adhesion (JKR, DMT, M-D); • Rough surface models (Greenwood-Williamson, CEB, SBL, Persson); • Other approaches (finite element-based models, molecular dynamics). Brief descriptions of experimental methods will introduce students to the tools used in micro- and nanotribology, such as profilometry, atomic force microscopy (AFM) and nanoindentation. The course will also cover the coupling of tribology with dynamics and vibrations, especially in the micro- and nanoscale, via reviews of applications such as the head-disk interface of hard disk drives.
Uren per week
Onderwijsvorm	Hoorcollege (LC), Opdracht (ASM), Werkcollege (T)
Toetsvorm	Opdracht (AST), Schriftelijk tentamen (WE) (See remarks for final grade.)
Vaksoort	master
Coördinator	Prof. Dr. A. Vakis
Docent(en)	Prof. Dr. A. Vakis
Verplichte literatuur	Titel Auteur ISBN Prijs Lecture notes Scientific journal and conference articles
Entreevoorwaarden	The course unit assumes prior knowledge acquired from fundamental courses such as "Materials and Molecules" and "Dynamics of Engineering Systems" (compulsory courses in the Bachelor IEM). The course unit content is structured so that all relevant concepts from earlier courses are re-introduced where necessary, starting from the first lecture that constitutes a review of solid mechanics and materials fundamentals.
Opmerkingen	Four homework assignments constitute 60% of the final grade. These increase in their level of difficulty, as estimated in the required workload of 4, 8, 12 and 8 hours, respectively, with their weights being 10%, 15%, 20% and 15%. The final exam constitutes 40% of the final grade. Students must receive a final grade of at least 5.6 (56%) to pass the course with an assigned grade of 6.0. This course was previously registered with course code WMIE14006
Opgenomen in	Opleiding Jaar Periode Type MSc Courses for Exchange Students: Engineering: Biomedical-Industrial-Mechanical - semester I b MSc Industrial Engineering and Management: Production Technology and Logistics  (Optional technical PTL modules) - semester I b Elective APE MSc Mechanical Engineering: Advanced Instrumentation  (Electives ) 1 semester I b keuzegroep MSc Mechanical Engineering: Materials for Mechanical Engineering  (Electives ) 1 semester I b keuze MSc Mechanical Engineering: Smart Factories  (Electives ) 1 semester I b keuze