Numerical modeling of rock deformation 13 :: Exercises

1. Numerical modeling of rock deformation13 :: Exercises www.structuralgeology.ethz.ch/education/teaching_material/numerical_modeling Fallsemester 2011 Thursdays 10:15 – 12:00 NO D11 & NO CO1 Marcel Frehner marcel.frehner@erdw.ethz.ch, NO E3 Assistant: Jonas Ruh, NO E69

2. Course-ID: 651-4003-00 Todays date: 08. 12. 2011 Course evaluation D1: How well were you prepared for the mathematical challenges of the lecture? 1: It was much too hard. My previous mathematical education was by far not sufficient. ... 3: It was challenging, but I managed. ... 5: It was too easy. D2: The course consists of two parts: (1) a more general part (Intro, Kinematics, Continuum mechanics, Rheology, Dimension analysis, Analytical methods), and (2) the finite-element part.What would you prefer if you take the lecture a second time? 1: More of the general part, and less details on the finite elements 2: Less of the general part, and more finite element modeling 3: The mixture was good. D3: About the finite-element part: 1: It was too much theoretical details. I would prefer to do more practical exercises. 2: I would have liked to hear more technical details. There are anyway the exercises for getting a mark. 3: It was a good balance between theory and exercises. D4: About getting a mark: 1: I like the way of getting a mark (little project/exercise in groups of two and report) 2: I like doing this project/exercise, but I would prefer giving an oral presentation in the last semester week instead of writing a report. 3: I like doing the project/exercise, but I would prefer an oral exam/discussion about the project. 4: I would prefer a written exam in the last semester week. Please also use the comment section or contact me directly. I want to improve…

3. Remarks to the exercises • Deadline: 20. January 2012 • What do you have to hand in: • Report not longer than 4 pages • All necessary Matlabcodes • The figures in the report should automatically appearwhen I run the code • Include comments in your code! • Send everything to marcel.frehner@erdw.ethz.chor bring it to the office NO E3.

4. Remarks to the exercises • All projects (except one) deal with heterogeneous media. • I tried to design equally difficult projects. • Generally, your code should work correctly. However, if it doesn’t, it’s not so bad. This is why the report is so important. Discuss with me and Jonas! • Dont’t think this will reduce your mark. • We want you to profit from this exercise. • Consider it an integral part of the lecture.

5. Remarks about the report • Your report should contain solution strategies and results. So, • don’t repeat the questions. • don’t motivate your work. • Describe governing equations. • Describe initial and boundary conditions. • Figures! Diagrams! Tables!(axis labels, titles, legend) • I don’t care the layout so much.

6. Tip • Automatic saving of figures over time if you have a time loop for it = 1:nt blablabla plot blablabla pname = ['filename_' num2str(it, ‘%8.8d') ‘.png']; print('-dpng','-r300',pname) end

7. Overview of Exercises

8. Goals of today • Read your exercise carefully and make sure you understand the task • Maybe something is missing in the description • Are all the physical parameters given? • Is the geometrical setup clear? • Maybe I wrote something not quite clearly • Maybe I forgot an important detail • Ask! • Start with the exercise... HAVE FUN