Application of the multiscale FEM to the modeling of cancellous bone
| Autor: | Klaus Hackl, Sandra Ilic, Robert P. Gilbert |
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| Rok vydání: | 2009 |
| Předmět: |
Models
Anatomic Materials science Biot number Mechanical Engineering Attenuation Finite Element Analysis Ultrasonic testing Mechanics Homogenization (chemistry) Bone and Bones Finite element method Sound medicine.anatomical_structure Modeling and Simulation Representative elementary volume Forensic engineering medicine Animals Porosity Cancellous bone Biotechnology |
| Zdroj: | Biomechanics and Modeling in Mechanobiology. 9:87-102 |
| ISSN: | 1617-7940 1617-7959 |
| DOI: | 10.1007/s10237-009-0161-6 |
| Popis: | This paper considers the application of multiscale finite element method (FEM) to the modeling of cancellous bone as an alternative for Biot's model, the main intention of which is to decrease the extent of the necessary laboratory tests. At the beginning, the paper gives a brief explanation of the multiscale concept and thereafter focuses on the modeling of the representative volume element and on the calculation of the effective material parameters, including an analysis of their change with respect to increasing porosity. The latter part of the paper concentrates on the macroscopic calculations, which is illustrated by the simulation of ultrasonic testing and a study of the attenuation dependency on material parameters and excitation frequency. The results endorse conclusions drawn from the experiments: increasing excitation frequency and material density cause increasing attenuation. |
| Databáze: | OpenAIRE |
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