I splitted this post up in 2 parts. The part of Pahr and the part of Hellmich. Both will hold lectures in this course in which you have to hand in a report each and go to the exam of them. So let`s start with Pahrs Part:
EXAM QUESTIONS of 2015.01.26:
Group A:
- Draw all boundary conditions and their relationship to the effective Compliance tensor.
- Pros and Cons of clinical homogenized Finite Elements.
- How do you get the Orientation of trabecular bone? How can you measure BVTV?
- Write down the Hill Equation (simple form) and explain it.
- Say something about the image processing steps: alignemend, extraction
- What are typical finite Elements in Biomechanics? What are there characteristics?
- Write down the equation for the powerlaw, sketch and explain it.
- You got an sample picture form a bone biopsy. How can you change the resolution of the image and define the size of the image?
- KUBC: Write down the equation and name the variables.
- Pros and Cons of a micro Finite Element study of a Full bone.
- Sketch the flowchart for the homogenization and also write down the input/ output variables.
Report:
- A group of 3 students has to work together to create a FE- model from the files Pahr gave them. Medtool will be used therefore.
Be aware that you should download medtool AND anaconda. IF you dont have anaconda running on your PC, medtool will open but when you want to start a mic, it keeps running for eternity (and beyond) doing nothing. [Cause there is no phyton to tell medtool what to do...] - Additionally check the ccx and cgx by going into the installation folder and click on ccx.exe and cgx.exe . Usually it will show which files are missing if there is a problem. In my case it had been two .dll- Files I downloaded from the web and then everything worked out fine.
Attached you will find the files needed to get the right results (xml-file, FE_main.inp and apriori-Strain). Just copy them in your working directory, do as described below, you might want to change the input in the Image Processing step and that's it. You have solved Pahrs example.