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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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Journal ArticleDOI
Entropy elasticity of isotropic rubber-like solids at finite strains
Gerhard Holzapfel,Juan C. Simo +1 more
TL;DR: In this article, a macroscopic continuum formulation and a numerical analysis of constitutive equations describing the thermoelastic behavior of amorphous cross-linked polymers above the glass transition temperature in which a specimen typically "snap-back" with rubbery characteristics are presented.
Book ChapterDOI
Collagen in Arterial Walls: Biomechanical Aspects
TL;DR: This chapter is written with an emphasis on the biomechanical role of collagen in normal and diseased arterial walls, its structural quantification and its consideration in material models including phenomena such as growth and remodeling.
Journal ArticleDOI
Effects of Age on the Elastic Properties of the Intraluminal Thrombus and the Thrombus-covered Wall in Abdominal Aortic Aneurysms: Biaxial Extension Behaviour and Material Modelling
TL;DR: The results suggest that thrombus age might be a potential predictor for the strength of the wall underneath the ILT and AAA rupture.
Journal ArticleDOI
3D Crack propagation in unreinforced concrete. A two-step algorithm for tracking 3D crack paths
TL;DR: In this article, the authors introduce a cohesive fracture process zone, which is characterized by a transversely isotropic traction-separation law and combine the cohesive crack concept with the partition of unity finite element method, where the finite element space is enhanced by the Heaviside function.
Journal ArticleDOI
Rheological characterization of human brain tissue.
TL;DR: This manuscript characterize the rheology of human brain tissue through a family of finite viscoelastic Ogdentype models and identify their parameters for multiple loading modes in four different regions of the brain, and identifies a single parameter set for shear, compression, tension, shear relaxation, and compression relaxation loading.