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Adaptive Numerical Integration of Dynamical Contact Problems

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Adaptive Numerical Integration of Dynamical Contact Problems

Corinna Klapproth (Autor)


Inhaltsverzeichnis, Datei (49 KB)
Leseprobe, Datei (92 KB)

ISBN-13 (Printausgabe) 3869557699
ISBN-13 (Printausgabe) 9783869557694
ISBN-13 (E-Book) 9783736937697
Sprache Englisch
Seitenanzahl 187
Auflage 1 Aufl.
Band 0
Erscheinungsort Göttingen
Promotionsort Berlin
Erscheinungsdatum 26.06.2011
Allgemeine Einordnung Dissertation
Fachbereiche Mathematik

The present thesis deals with the efficient adaptive numerical integration of dynamical contact problems. This is the core problem in the fast and robust simulation of stresses arising in a real patient’s knee joint for different kinds of loading situations. The topic is of high interest in the field of computer-assisted therapy planning, which aims at the generation of a ”virtual patient“. This tool allows the design of effective treatment options and precise surgery strategies within a clinical environment. Potential tasks of patient-specific techniques in orthopedics are osteotomic interventions and the construction and selection of implants or fixation devices.
For realistic predictions of therapeutical manipulations, numerical simulation and optimization are applied on a detailed three-dimensional geometry of the individual patient’s knee (obtained from anatomical CT or MRT image data). In view of a reasonable clinical application, the necessary computations have to be performed on
local workstations in clinics within short time frames. Moreover, the solutions have to be resilient enough to serve as a basis for responsible medical decisions. With regard to these conditions, highest level requirements have to be set on the efficiency and accuracy of the applied numerical techniques.
The appropriate approach to cope with this mathematical challenge is the construction of an adaptive numerical integrator for the dynamical contact problem.
For this purpose, dynamical contact problems have to be analyzed precisely from both the analytical and the numerical point of view.