||Employee at BAM Federal Institute for Materials Research and Testing
Spectrum of tasks: Failure Analysis
|10.2005 - 05.2009
||Researcher at Institute for Materials Science II,
University of Karlsruhe (TH)
Collaborative Research Centre Programme 483, Subproject B2
Materials development: Surface modification of oxide ceramics
Tribology: tribological characterization by laboratory tests
||- Seminars Materials Science I and II
- Basic Lab Materials Science
- Laser laboratory
||Doctorate at Karlsruhe Institute of Technology (KIT), Faculty Mechanical Engineering
"Herstellung multiphasiger Al2O3-Friktionsmaterialien und
ihre tribologische Charakterisierung im ungeschmierten Gleitkontakt mit Stahl"
Degree: Doktor der Ingenieurwissenschaften
Doctoral Thesis Supervisor: K.-H. Zum Gahr
|10.1999 - 07.2005
||Mechanical Engineering at University of Rostock
Majors: Lightweight Design and Materials Diagnostics/Failure Analysis
Diploma Thesis: "Wear Behaviour of Coated GFRPs due to Ice"
|07.2004 - 05.2005
||Stay in Finland (Helsinki)
employed at Helsinki University of Technology (HUT)
for externally funded project "Wear of GFRPs in Ice"
Study Thesis and Diploma Thesis in English
CV as pdf
His Topic of Materials' Days 2011:
Failure analysis of medical implants: importance of design, material (defects) and operational loading
Failures of medical implants often have severe consequences. For that reason the identification of possible failure causes in order to prevent future failures is crucial. In this presentation the generic conducting of failure analyses at BAM is introduced which includes the description of therefor necessary methods and actions. Moreover, a definition for medical implants is given and their special requirements are mentioned.
The results of several case studies of conducted failure analyses for a short-term implant (intramedullary hip screw) and long-term implants (hip endoprosthesis and artificial heart valve) are discussed. It was found that often a combination of several factors leads to failure of implants.
Finally, it can be concluded that the most common failure mechanisms for medical implants are fatigue fracture, corrosion and wear. The main influences on failures of medical implants are in descending order of importance: operational loading, design and material (defects).