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.
Papers
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Journal ArticleDOI
Experimental and mathematical characterization of coronary polyamide-12 balloon catheter membranes.
Markus A Geith,Markus A Geith,Jakob D Eckmann,Daniel Ch Haspinger,Emmanouil Agrafiotis,Dominik Maier,Patrick Szabo,Gerhard Sommer,Thomas Schratzenstaller,Gerhard Holzapfel,Gerhard Holzapfel +10 more
TL;DR: The results of this study reveal the semi-compliant, nonlinear, and viscoelastic character of polyamide-12 balloon catheter membranes.
Journal ArticleDOI
Role of Vessel Microstructure in the Longevity of End-to-side Grafts.
Mehdi Ramezanpour,Farhad Rikhtegar Nezami,Nahid Ramezanpour,Foad Kabinejadian,Mehdi Maerefat,Gerhard Holzapfel,Joseph L. Bull +6 more
TL;DR: It is proposed that the mismatch between the collagen fiber orientations of the graft and the host artery, independent of the effect of the suture line, may induce aberrant stresses to the anastomosis of the bypass graft.
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A backward pre-stressing algorithm for efficient finite element implementation of in vivo material and geometrical parameters into fibril-reinforced mixture models of articular cartilage.
TL;DR: An efficient algorithm generalizing the backward schemes to restore stress-free conditions by optimizing both the involving variables is proposed and it is hypothesized that it can affect the results considerably.