G
Gerhard Holzapfel
Researcher at Norwegian University of Science and Technology
Publications - 445
Citations - 29335
Gerhard Holzapfel is an academic researcher from Norwegian University of Science and Technology. The author has contributed to research in topics: Finite element method & Constitutive equation. The author has an hindex of 77, co-authored 410 publications receiving 25410 citations. Previous affiliations of Gerhard Holzapfel include Washington University in St. Louis & Graz University of Technology.
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A phase-field approach to model fracture of arterial walls: Theory and finite element analysis
TL;DR: The regularized crack surface possesses the property of Gamma-Convergence, i.e. the sharp crack topology is restored with a vanishing length-scale parameter, and a novel energy-based anisotropic failure criterion which regulates the evolution of the crack phase-field is proposed.
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A constitutive model for fibrous tissues considering collagen fiber crimp
Fernando Cacho,Fernando Cacho,Pierre Elbischger,Jose F. Rodriguez,Manuel Doblaré,Gerhard Holzapfel,Gerhard Holzapfel +6 more
TL;DR: It is shown that the fiber crimp model can reproduce several of the expected characteristics of fibrous tissues and quantify the effect of parameter changes on the mechanical response.
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Coupling the Hemodynamic Environment to the Evolution of Cerebral Aneurysms: Computational Framework and Numerical Examples
TL;DR: An aneurysm evolution model, which utilizes a realistic microstructural model of the arterial wall, is combined with detailed 3D hemodynamic solutions and provides the basis to further explore the etiology of aneurYSmal disease.
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Numerical aspects of anisotropic failure in soft biological tissues favor energy-based criteria: A rate-dependent anisotropic crack phase-field model
TL;DR: Results favor the energy-based criterion as a better candidate to reflect a stable and physically meaningful crack growth, particularly in complex three-dimensional geometries with a highly anisotropic texture at finite strains.