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Gerhard A. Holzapfel
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Proceedings Papers

A Constitutive Framework for the Inelastic Mechanical Behavior of Arteries

Gerhard A. Holzapfel, Thomas Ch. Gasser
Proc. ASME. IMECE2001, Advances in Bioengineering, 235-236, November 11–16, 2001
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2001/BED-23117
https://doi.org/10.1115/IMECE2001/BED-23117
View Paper titled, A Constitutive Framework for the Inelastic Mechanical Behavior of Arteries
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Topics: Atherosclerosis, Biomedicine, Constitutive equations, Design, Mechanical behavior, Prostheses, Surgery
Proceedings Papers

Mechanics of Angioplasty: Wall, Balloon and Stent

Gerhard A. Holzapfel, Christian A. J. Schulze-Bauer, Michael Stadler
Proc. ASME. IMECE2000, Mechanics in Biology, 141-156, November 5–10, 2000
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2000-1927
https://doi.org/10.1115/IMECE2000-1927
View Paper titled, Mechanics of Angioplasty: Wall, Balloon and Stent
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Topics: Stents, Biological tissues, Stress, Anisotropy, Constitutive equations, Diseases, Extruding, Finite element model, Magnetic resonance imaging, Solid mechanics
Journal Articles

Role of Vessel Microstructure in the Longevity of End-to-Side Grafts

Mehdi Ramezanpour, Farhad Rikhtegar Nezami, Nahid Ramezanpour, Foad Kabinejadian, Mehdi Maerefat, Gerhard A. Holzapfel, Joseph L. Bull
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. February 2020, 142(2): 021008.
Paper No: BIO-18-1439
https://doi.org/10.1115/1.4043873
Published Online: October 11, 2019
View Article titled, Role of Vessel Microstructure in the Longevity of End-to-Side Grafts
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Topics: Bifurcation, Coronary arteries, Fibers, Fluids, Stress, Vessels, Fluid structure interaction, Simulation, Deformation
Journal Articles

Compressibility and Anisotropy of the Ventricular Myocardium: Experimental Analysis and Microstructural Modeling

Eoin McEvoy, Gerhard A. Holzapfel, Patrick McGarry
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. August 2018, 140(8): 081004.
Paper No: BIO-17-1590
https://doi.org/10.1115/1.4039947
Published Online: May 24, 2018
View Article titled, Compressibility and Anisotropy of the Ventricular Myocardium: Experimental Analysis and Microstructural Modeling
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Topics: Anisotropy, Biological tissues, Compressibility, Compression, Fibers, Modeling, Myocardium, Stress, Shear (Mechanics), Simulation
Journal Articles

Perspectives on Sharing Models and Related Resources in Computational Biomechanics Research

Ahmet Erdemir, Peter J. Hunter, Gerhard A. Holzapfel, Leslie M. Loew, John Middleton, Christopher R. Jacobs, Perumal Nithiarasu, Rainlad Löhner, Guowei Wei, Beth A. Winkelstein, Victor H. Barocas, Farshid Guilak, Joy P. Ku, Jennifer L. Hicks, Scott L. Delp, Michael S. Sacks, Jeffrey A. Weiss, Gerard A. Ateshian, Steve A. Maas, Andrew D. McCulloch, Grace C. Y. Peng
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Expert View
J Biomech Eng. February 2018, 140(2): 024701.
Paper No: BIO-17-1530
https://doi.org/10.1115/1.4038768
Published Online: January 23, 2018
View Article titled, Perspectives on Sharing Models and Related Resources in Computational Biomechanics Research
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Topics: Biomechanics, Computer software, Modeling, Simulation
Journal Articles

A Thick-Walled Fluid–Solid-Growth Model of Abdominal Aortic Aneurysm Evolution: Application to a Patient-Specific Geometry

Andrii Grytsan, Paul N. Watton, Gerhard A. Holzapfel
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. March 2015, 137(3): 031008.
Paper No: BIO-14-1124
https://doi.org/10.1115/1.4029279
Published Online: March 1, 2015
View Article titled, A Thick-Walled Fluid–Solid-Growth Model of Abdominal Aortic Aneurysm Evolution: Application to a Patient-Specific Geometry
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Topics: Aneurysms, Fluids, Geometry, Modeling, Fibers
Proceedings Papers

Method for Incorporating Three-Dimensional Residual Stresses Into Patient-Specific Simulations of Arteries

David M. Pierce, Thomas E. Fastl, Hannah Weisbecker, Gerhard A. Holzapfel, Borja Rodriguez-Vila, Enrique J. Gómez, Peter Verbrugghe, Inge Fourneau, Geert Maleux, Paul Herijgers
Proc. ASME. SBC2013, Volume 1B: Extremity; Fluid Mechanics; Gait; Growth, Remodeling, and Repair; Heart Valves; Injury Biomechanics; Mechanotransduction and Sub-Cellular Biophysics; MultiScale Biotransport; Muscle, Tendon and Ligament; Musculoskeletal Devices; Multiscale Mechanics; Thermal Medicine; Ocular Biomechanics; Pediatric Hemodynamics; Pericellular Phenomena; Tissue Mechanics; Biotransport Design and Devices; Spine; Stent Device Hemodynamics; Vascular Solid Mechanics; Student Paper and Design Competitions, V01BT65A001, June 26–29, 2013
Publisher: American Society of Mechanical Engineers
Paper No: SBC2013-14232
https://doi.org/10.1115/SBC2013-14232
View Paper titled, Method for Incorporating Three-Dimensional Residual Stresses Into Patient-Specific Simulations of Arteries
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Topics: Engineering simulation, Residual stresses, Simulation, Biomedical imaging, Aneurysms, Blood, Constitutive equations, Continuum mechanics, Finite element analysis, Geometry
Proceedings Papers

DT-MRI Based Numerical Simulation of Collagen Fiber Deformation in Human Articular Cartilage

David M. Pierce, Werner Trobin, Siegfried Trattnig, Horst Bischof, Gerhard A. Holzapfel
Proc. ASME. SBC2009, ASME 2009 Summer Bioengineering Conference, Parts A and B, 275-276, June 17–21, 2009
Publisher: American Society of Mechanical Engineers
Paper No: SBC2009-203921
https://doi.org/10.1115/SBC2009-203921
View Paper titled, DT-MRI Based Numerical Simulation of Collagen Fiber Deformation in Human Articular Cartilage
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Topics: Cartilage, Computer simulation, Deformation, Fibers, Magnetic resonance imaging, Biological tissues, Bone, Chondrocytes, Density, Electrolytes
Proceedings Papers

Coupling the Haemodynamic Environment to the Evolution of Cerebral Aneurysms

Paul N. Watton, Yiannis Ventikos, Gerhard A. Holzapfel
Proc. ASME. SBC2009, ASME 2009 Summer Bioengineering Conference, Parts A and B, 161-162, June 17–21, 2009
Publisher: American Society of Mechanical Engineers
Paper No: SBC2009-206756
https://doi.org/10.1115/SBC2009-206756
View Paper titled, Coupling the Haemodynamic Environment to the Evolution of Cerebral Aneurysms
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Topics: Aneurysms, Hemodynamics, Rupture, Risk, Diseases, Maintenance
Proceedings Papers

Biomechanical Analysis of Stent Placement in a Coronary Bifurcation Considering the Anisotropic Response of the Wall

Peter Mortier, Benedict Verhegghe, Matthieu De Beule, Pascal Verdonck, Gerhard A. Holzapfel
Proc. ASME. SBC2009, ASME 2009 Summer Bioengineering Conference, Parts A and B, 1319-1320, June 17–21, 2009
Publisher: American Society of Mechanical Engineers
Paper No: SBC2009-206611
https://doi.org/10.1115/SBC2009-206611
View Paper titled, Biomechanical Analysis of Stent Placement in a Coronary Bifurcation Considering the Anisotropic Response of the Wall
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Topics: Anisotropy, Bifurcation, Biomechanics, Stents, Design, Engineering simulation, Finite element analysis, Medical devices, Simulation, Biological tissues
Proceedings Papers

Layer-Specific Distributed Collagen Fiber Orientations in Human Arteries, From Thoracic Aorta to Common Iliac

Andreas J. Schriefl, Peter Regitnig, David M. Pierce, Gerhard A. Holzapfel
Proc. ASME. SBC2011, ASME 2011 Summer Bioengineering Conference, Parts A and B, 5-6, June 22–25, 2011
Publisher: American Society of Mechanical Engineers
Paper No: SBC2011-53403
https://doi.org/10.1115/SBC2011-53403
View Paper titled, Layer-Specific Distributed Collagen Fiber Orientations in Human Arteries, From Thoracic Aorta to Common Iliac
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Topics: Aorta, Fibers, Biological tissues, Microscopy
Journal Articles

A Methodology to Analyze Changes in Lipid Core and Calcification Onto Fibrous Cap Vulnerability: The Human Atherosclerotic Carotid Bifurcation as an Illustratory Example

Dimitrios E. Kiousis, Stephan F. Rubinigg, Martin Auer, Gerhard A. Holzapfel
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. December 2009, 131(12): 121002.
https://doi.org/10.1115/1.4000078
Published Online: October 29, 2009
View Article titled, A Methodology to Analyze Changes in Lipid Core and Calcification Onto Fibrous Cap Vulnerability: The Human Atherosclerotic Carotid Bifurcation as an Illustratory Example
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Topics: Atherosclerosis, Bifurcation, Biological tissues, Fibers, Magnetic resonance imaging, Stress, Rupture, Risk, Finite element analysis, Biomechanics
Journal Articles

Influence of Medial Collagen Organization and Axial In Situ Stretch on Saccular Cerebral Aneurysm Growth

Thomas Eriksson, Martin Kroon, Gerhard A. Holzapfel
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. October 2009, 131(10): 101010.
https://doi.org/10.1115/1.3200911
Published Online: September 4, 2009
View Article titled, Influence of Medial Collagen Organization and Axial In Situ Stretch on Saccular Cerebral Aneurysm Growth
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Topics: Aneurysms, Fibers, Stress
Journal Articles

Coupling the Hemodynamic Environment to the Evolution of Cerebral Aneurysms: Computational Framework and Numerical Examples

Paul N. Watton, Nikolaus B. Raberger, Gerhard A. Holzapfel, Yiannis Ventikos
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. October 2009, 131(10): 101003.
https://doi.org/10.1115/1.3192141
Published Online: September 1, 2009
View Article titled, Coupling the Hemodynamic Environment to the Evolution of Cerebral Aneurysms: Computational Framework and Numerical Examples
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Topics: Aneurysms, Biological tissues, Fibers, Hemodynamics, Geometry, Physiology, Textiles, Stress
Journal Articles

A Phenomenological Approach Toward Patient-Specific Computational Modeling of Articular Cartilage Including Collagen Fiber Tracking

David M. Pierce, Werner Trobin, Siegfried Trattnig, Horst Bischof, Gerhard A. Holzapfel
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. September 2009, 131(9): 091006.
https://doi.org/10.1115/1.3148471
Published Online: August 5, 2009
View Article titled, A Phenomenological Approach Toward Patient-Specific Computational Modeling of Articular Cartilage Including Collagen Fiber Tracking
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Topics: Cartilage, Fibers, Simulation, Deformation, Textiles
Journal Articles

Three-Dimensional Modeling and Computational Analysis of the Human Cornea Considering Distributed Collagen Fibril Orientations

Anna Pandolfi, Gerhard A. Holzapfel
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. December 2008, 130(6): 061006.
https://doi.org/10.1115/1.2982251
Published Online: October 9, 2008
View Article titled, Three-Dimensional Modeling and Computational Analysis of the Human Cornea Considering Distributed Collagen Fibril Orientations
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Topics: Cornea, Stress, Physiology
Journal Articles

Modeling of Saccular Aneurysm Growth in a Human Middle Cerebral Artery

Martin Kroon, Gerhard A. Holzapfel
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. October 2008, 130(5): 051012.
https://doi.org/10.1115/1.2965597
Published Online: September 10, 2008
View Article titled, Modeling of Saccular Aneurysm Growth in a Human Middle Cerebral Artery
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Topics: Aneurysms, Fibers, Cerebral arteries, Stress, Steady state, Membranes
Journal Articles

Mechanical Stresses in Abdominal Aortic Aneurysms: Influence of Diameter, Asymmetry, and Material Anisotropy

José F. Rodríguez, Cristina Ruiz, Manuel Doblaré, Gerhard A. Holzapfel
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. April 2008, 130(2): 021023.
https://doi.org/10.1115/1.2898830
Published Online: April 11, 2008
View Article titled, Mechanical Stresses in Abdominal Aortic Aneurysms: Influence of Diameter, Asymmetry, and Material Anisotropy
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Topics: Aneurysms, Anisotropy, Biological tissues, Stress
Journal Articles

Dissection Properties of the Human Aortic Media: An Experimental Study

Gerhard Sommer, T. Christian Gasser, Peter Regitnig, Martin Auer, Gerhard A. Holzapfel
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. April 2008, 130(2): 021007.
https://doi.org/10.1115/1.2898733
Published Online: March 28, 2008
View Article titled, Dissection Properties of the Human Aortic Media: An Experimental Study
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Topics: Aorta, Biological tissues, Failure, Stress, Strips, Tension, Damage, Anisotropy
Journal Articles

Changes in the Mechanical Environment of Stenotic Arteries During Interaction With Stents: Computational Assessment of Parametric Stent Designs

Gerhard A. Holzapfel, ASME Member, Michael Stadler, Thomas C. Gasser
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. February 2005, 127(1): 166–180.
https://doi.org/10.1115/1.1835362
Published Online: March 8, 2005
View Article titled, Changes in the Mechanical Environment of Stenotic Arteries During Interaction With Stents: Computational Assessment of Parametric Stent Designs
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Topics: Stents, Struts (Engineering), Stress, Pressure