A three-dimensional Galerkin finite element method was developed for large deformations of ventricular myocardium and other incompressible, nonlinear elastic, anisotropic materials. Cylindrical and spherical elements were used to solve axisymmetric problems with r.m.s. errors typically less than 2 percent. Isochoric interpolation and pressure boundary constraint equations enhanced low-order curvilinear elements under special circumstances (69 percent savings in degrees of freedom, 78 percent savings in solution time for inflation of a thick-walled cylinder). Generalized tensor products of linear Lagrange and cubic Hermite polynomials permitted custom elements with improved performance, including 52 percent savings in degrees of freedom and 66 percent savings in solution time for compression of a circular disk. Such computational efficiencies become significant for large scale problems such as modeling the heart.
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November 1996
Technical Papers
A Three-Dimensional Finite Element Method for Large Elastic Deformations of Ventricular Myocardium: I—Cylindrical and Spherical Polar Coordinates
K. D. Costa,
K. D. Costa
Department of Bioengineering, University of California San Diego, La Jolla, CA
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P. J. Hunter,
P. J. Hunter
Department of Engineering Science, University of Auckland, Auckland, New Zealand
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J. M. Rogers,
J. M. Rogers
Department of Medicine, University of Alabama at Birmingham, Birmingham, AL
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J. M. Guccione,
J. M. Guccione
Department of Mechanical Engineering, Washington University, St. Louis, MI
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L. K. Waldman,
L. K. Waldman
Department of Medicine, University of California San Diego, La Jolla, CA
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A. D. McCulloch
A. D. McCulloch
Department of Bioengineering, University of California San Diego, La Jolla, CA
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K. D. Costa
Department of Bioengineering, University of California San Diego, La Jolla, CA
P. J. Hunter
Department of Engineering Science, University of Auckland, Auckland, New Zealand
J. M. Rogers
Department of Medicine, University of Alabama at Birmingham, Birmingham, AL
J. M. Guccione
Department of Mechanical Engineering, Washington University, St. Louis, MI
L. K. Waldman
Department of Medicine, University of California San Diego, La Jolla, CA
A. D. McCulloch
Department of Bioengineering, University of California San Diego, La Jolla, CA
J Biomech Eng. Nov 1996, 118(4): 452-463 (12 pages)
Published Online: November 1, 1996
Article history
Received:
September 12, 1994
Revised:
October 10, 1995
Online:
October 30, 2007
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Costa, K. D., Hunter, P. J., Rogers, J. M., Guccione, J. M., Waldman, L. K., and McCulloch, A. D. (November 1, 1996). "A Three-Dimensional Finite Element Method for Large Elastic Deformations of Ventricular Myocardium: I—Cylindrical and Spherical Polar Coordinates." ASME. J Biomech Eng. November 1996; 118(4): 452–463. https://doi.org/10.1115/1.2796031
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