Macrodamage Accumulation Model for a Human Femur

Farah Hamandi, Tarun Goswami

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Abstract

The objective of this study was to more fully understand the mechanical behavior of bone tissue that is important to find an alternative material to be used as an implant and to develop an accurate model to predict the fracture of the bone. Predicting and preventing bone failure is an important area in orthopaedics. In this paper, the macrodamage accumulation models in the bone tissue have been investigated. Phenomenological models for bone damage have been discussed in detail. In addition, 3D finite element model of the femur prepared from imaging data with both cortical and trabecular structures is delineated using MIMICS and ANSYS® and simulated as a composite structure. The damage accumulation occurring during cyclic loading was analyzed for fatigue scenario. We found that the damage accumulates sooner in the multiaxial than in the uniaxial loading condition for the same number of cycles, and the failure starts in the cortical bone. The damage accumulation behavior seems to follow a three-stage growth: a primary phase, a secondary phase of damage growth marked by linear damage growth, and a tertiary phase that leads to failure. Finally, the stiffness of the composite bone comprising the cortical and trabecular bone was significantly different as expected.

Originalspracheenglisch
Aufsatznummer4539178
FachzeitschriftApplied Bionics and Biomechanics
Jahrgang2017
DOIs
PublikationsstatusVeröffentlicht - 2017

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Femur
Bone
Bone and Bones
Growth
Bone Fractures
Orthopedics
Fatigue
Tissue
Composite structures
Stiffness
Fatigue of materials
Imaging techniques
Composite materials
Cortical Bone

ASJC Scopus subject areas

  • Biotechnology
  • !!Medicine (miscellaneous)
  • Bioengineering
  • !!Biomedical Engineering

Dies zitieren

Macrodamage Accumulation Model for a Human Femur. / Hamandi, Farah; Goswami, Tarun.

in: Applied Bionics and Biomechanics, Jahrgang 2017, 4539178, 2017.

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Hamandi, Farah ; Goswami, Tarun. / Macrodamage Accumulation Model for a Human Femur. in: Applied Bionics and Biomechanics. 2017 ; Jahrgang 2017.
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