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P-version of the Finite-element Method for Highly Heterogeneous Simulation of Human Bone by C.M. Müller-Karger; E. Rank; M. Cerrolaza is a Engineering article available to read on EtoBox.

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A three-dimensional model of the human tibia bone subject to realistic static physiological conditions was developed using the p-version of the ÿnite-element method. The p-version of the ÿnite-element method in combination with the blending-function method enabled the construction of elements displaying accurate representation of the domain's boundary. This allowed the modeling of complex structures like bones using few elements and circumvented the problems of complexity and inaccuracy that are typical of current commercially available ÿnite-element mesh generators. In these methods large p-elements are integrated with high-order functions, permitting the coupling of the mechanical properties of each integration point directly to a voxel matrix extracted from computerized tomographies. This allowed order of 1000 di erent properties to be assigned per element thereby rendering a highly heterogeneous bone model. The ÿnal objective of this bone model is to o ers a platform for the study medical devices and bone composition and behavior in fracture processes and in pathologies as osteoporosis. The results show realistic stresses and displacements of the human tibia under static loadin

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Author

C.M. Müller-Karger; E. Rank; M. Cerrolaza

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0168-874X)

Published

2004

Language

EN

Field

Engineering (Physical Sciences)