Sökning: "Gerhard Holzapfel"
Hittade 4 avhandlingar innehållade orden Gerhard Holzapfel.
1. Computer Aided Angioplasty : Patient-specific arterial modeling and smooth 3D contact analysis of the stent-balloon-artery interaction
Sammanfattning : Paper A: In this paper, the development and implementation of a contact algorithm based on C2-continuous surface representations is discussed. In 3D contact simulations involving models with arbitrarily curved surfaces (as in the case of vessel walls), the discretization of the contact surfaces by means of facet-based techniques could lead to numerical instabilities and finally loss of quadratic convergence. LÄS MER
2. Mechanochemical Modeling of Smooth Muscle Activation
Sammanfattning : Smooth muscle has an important role in several physiological processes, where it regulates the wall tension and the size of hollow organs. In blood vessels, the contraction and relaxation of smooth muscle contribute to the mechanical stability of the vessel wall and determines the diameter. LÄS MER
3. Smooth Muscle Modeling : Activation and contraction of contractile units in smooth muscle
Sammanfattning : .... LÄS MER
4. Arterial mechanics : noninvasive identification of constitutive parameters and residual stress
Sammanfattning : This thesis concerns the mechanical modelling of arteries, and particularly a method to identify parameters describing the mechanical properties using only clinically obtainable in vivo measurements. The artery is modelled as a fibre reinforced, incompressible, thick-walled cylinder subjected to large deformations and a residual stress field. LÄS MER