Dennis Kochmann: Catalogue data in Spring Semester 2021 |  |
| Name | Prof. Dr. Dennis Kochmann |
| Name variants | Dennis M. Kochmann |
| Field | Mechanics and Materials |
| Address | Mechanik und Materialforschung ETH Zürich, LEE N 201 Leonhardstrasse 21 8092 Zürich SWITZERLAND |
| Telephone | +41 44 632 32 76 |
| dmk@ethz.ch | |
| URL | https://mm.ethz.ch/people/lab-members/principal-investigator.html |
| Department | Mechanical and Process Engineering |
| Relationship | Full Professor |
| Number | Title | ECTS | Hours | Lecturers | |
|---|---|---|---|---|---|
| 151-0079-31L | Swissloop Prerequisite: Enrollment for 151-0079-30L Swissloop in HS20. | 14 credits | 15A | D. Kochmann | |
| Abstract | Students develop and build a product from A-Z! They work in teams and independently, learn to structure problems, to identify solutions, system analysis and simulations, as well as presentation and documentation techniques. They build the product with access to a machine shop and state of the art engineering tools (Matlab, Simulink, etc). | ||||
| Learning objective | The various objectives of the Focus Project are: - Synthesizing and deepening the theoretical knowledge from the basic courses of the 1. - 4. semester - Team organization, work in teams, increase of interpersonal skills - Independence, initiative, independent learning of new topic contents - Problem structuring, solution identification in indistinct problem definitions, searches of information - System description and simulation - Presentation methods, writing of a document - Ability to make decisions, implementation skills - Workshop and industrial contacts - Learning and recess of special knowledge - Control of most modern engineering tools (Matlab, Simulink, CAD, CAE, PDM) | ||||
| 151-0079-99L | Vacuum Transport Seminar: Insights into Hyperloop Research  | 0 credits | 1S | D. Kochmann | |
| Abstract | The Vacuum Transport Seminar series enters its third round in the spring semester 2021, following the successful editions in spring and autumn semesters 2020. It is held online via Zoom and offered internationally across a number of European Universities.The seminar was founded and is held by Swissloop and the EuroTube Foundation, and partnered by other European institutes. | ||||
| Learning objective | Students present their work in Hyperloop research. Additionally, industry experts contribute insight talks. The seminar is open to all students, everyone is welcome to join join at any of the dates. About the seminar’s background: Swissloop, the Hyperloop Team based at ETH Zürich, is pursuing long-term support for research and education in vacuum transport. In addition to the active team constructing and building a Hyperloop pod every year, various research projects at ETH are pursued in cooperation with EuroTube. The EuroTube Foundation accelerates the development of sustainable vacuum transportation technologies to provide publicly accessible research and testing infrastructures for universities and industry. About Vacuum Transportation: The demand for air transport has more than doubled in the last 20 years and is growing yearly by about 6.5%. Global demand for cargo and passenger transportation can barely be met today – let alone in a sustainable manner. Vacuum transport can replace short to medium distance flights and can significantly reduce CO2 emissions. The market of high-speed transportation is a global megatrend set to affect our lives in years to come. | ||||
| 151-0518-00L | Computational Mechanics I: Intro to FEA | 4 credits | 4G | D. Kochmann | |
| Abstract | Numerical methods and techniques for solving initial boundary value problems in solid mechanics (heat conduction, static and dynamic mechanics problems of solids and structures). Finite difference methods, indirect and direct techniques, variational methods, finite element (FE) method, FE analysis in small strains for applications in structural mechanics and solid mechanics. | ||||
| Learning objective | To understand the concepts and application of numerical techniques for the solution of initial boundary value problems in solid and structural mechanics, particularly including the finite element method for static and dynamic problems. | ||||
| Content | 1. Introduction, direct and indirect numerical methods. 2. Finite differences, stability analysis. 3. Variational methods. 4. Finite element method. 5. Structural elements (bars and beams). 6. 2D and 3D solid elements (isoparametric and simplicial elements), numerical quadrature. 7. Assembly, solvers, finite element technology. 8. Dynamics, vibrations. 9. Selected topics in finite element analysis. | ||||
| Lecture notes | Lecture notes will be provided. Students are strongly encouraged to take their own notes during class. | ||||
| Literature | No textbook required; relevant reference material will be suggested. | ||||
| Prerequisites / Notice | Mechanics 1 & 2 and Dynamics. | ||||
| 151-0520-00L | Multiscale Modeling | 4 credits | 3G | D. Kochmann | |
| Abstract | Theoretical foundations and numerical applications of multiscale modeling in solid mechanics, from atomistics all the way up to the macroscopic continuum scale with a focus on scale-bridging methods (including the theory of homogenization, computational homogenization techniques, modeling by methods of atomistics, coarse-grained atomistics, mesoscale models, multiscale constitutive modeling). | ||||
| Learning objective | To acquire the theoretical background and practical experience required to develop and use theoretical-computational tools that bridge across scales in the multiscale modeling of solids. | ||||
| Content | Microstructure and unit cells, theory of homogenization, computational homogenization by the finite element method and Fourier-based techniques, discrete-to-continuum coupling methods, atomistics and molecular dynamics, coarse-grained atomistics for crystalline solids, quasicontinuum techniques, analytical upscaling methods and models, multiscale constitutive modeling, selected topics of multiscale modeling. | ||||
| Lecture notes | Lecture notes and relevant reading materials will be provided. | ||||
| Literature | No textbook is required. Reference reading materials are suggested. | ||||
| Prerequisites / Notice | Continuum Mechanics I or II and Computational Mechanics I or II (or equivalent). | ||||
| 151-0528-00L | Theory of Phase Transitions | 4 credits | 3G | L. Guin, D. Kochmann | |
| Abstract | This course addresses two major examples of phase transitions, namely solid-solid phase transformations and solidification. We focus on the modeling of the propagation of phase boundaries (surface of strain discontinuity or solidification front) in continuum media. Both the sharp-interface model and related numerical modeling techniques based on the phase-field method are introduced. | ||||
| Learning objective | The students are able to: - Use mechanical and/or thermodynamic balance laws to formulate a continuum model for problems involving phase transformations in 1D, 2D, and 3D. - Distinguish between the different modeling techniques used for the propagation of phase boundaries and discuss their underlying assumptions. - Apply the concepts of thermodynamics to continuous media in order to derive thermodynamically consistent models. - Model the evolution of a solidification front using the phase-field method. | ||||
| Content | 1. Mechanics of bars 2. The Ericksen’s bar problem: solid-solid phase transformation in 1D 3. Review of classical thermodynamics 4. Continuum theory for phase boundaries in 3D 5. Solidification: a free-boundary problem with interfacial structure 6. Phase-field model for solidification 7. Selected topics involving phase transitions | ||||
| Lecture notes | Lecture notes will be provided for reference. Students are strongly encouraged to take their own notes during class. | ||||
| Literature | No textbook required; relevant reference material will be suggested. | ||||
| Prerequisites / Notice | Continuum Mechanics I. Having taken or taking Continuum Mechanics II in parallel would be helpful. | ||||