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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Journal ArticleDOI
Fully coupled thermomechanical behaviour of viscoelastic solids treated with finite elements
Gerhard Holzapfel,G. Reiter +1 more
TL;DR: In this paper, a numerical simulation of thermomechanical processes for linear viscoelastic solids with special consideration of the dissipative coupling phenomena is presented, where a constitutive equation is based on a four-parameter model, the so-called Kelvin-Maxwell model.
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An investigation of layer-specific tissue biomechanics of porcine atrioventricular valve anterior leaflets
Katherine Kramer,Colton J. Ross,Devin W. Laurence,Anju R Babu,Yi Wu,Rheal A. Towner,Arshid Mir,Harold M. Burkhart,Gerhard Holzapfel,Chung-Hao Lee +9 more
TL;DR: The results suggest that the atrialis/spongiosa layer is the most extensible and anisotropic layer, possibly due to its relatively low collagen content as compared to other layers, and the previously adopted homogenous leaflet in the AHV biomechanical modeling may be an oversimplification of the complex leaflet anatomy.
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In vivo characterization of the mechanics of human uterine cervices
Margit Bauer,Edoardo Mazza,Alessandro Nava,Willibald Zeck,Martina Eder,Michael Bajka,Fernando Cacho,Uwe Lang,Gerhard Holzapfel,Gerhard Holzapfel +9 more
TL;DR: The first clinical application of an aspiration device is shown, which allows in vivo testing of the biomechanical properties of the cervix with the aim to establish the physiological biomechanicals changes throughout gestation and to detect pregnant women at risk for CI.
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An arterial constitutive model accounting for collagen content and cross-linking
TL;DR: An initial attempt to characterize this effect on the elastic response in respect of arterial tissue using a 3D model that accounts for the relative orientation and stiffness of collagen fibers and cross-links and their coupling using an invariant-based strain-energy function is presented.