HIERARCHICAL MODELING OF PLASTICITY AND STRENGTH OF TRABECULAR BONE

Iwona Jasiuka, Fereshteh Sabet, Diab W Abueidda, Elham Hamed, Ouli Jin, Seid Koric

Research output: Contribution to conferencePaper

Abstract

We study computationally, using a finite element method, plastic deformations and strength of trabecular bone. We represent the trabecular bone as a material with hierarchical structure and consider four structural scales: the nanoscale (mineralized collagen fibril), the sub-microscale (single lamella consisting of mineralized collagen fibrils), the microscale (trabecular bone tissue), and the mesoscale (trabecular cellular network). At each scale we model the elastic and inelastic responses of bone until failure. We account for the experimentally observed failure mechanisms. Theoretical results are in good agreement with experiments conducted on cylindrical porcine trabecular bone samples.
Original languageEnglish (US)
Number of pages2
StatePublished - 2016

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plastic properties
bones
collagens
microbalances
scale models
lamella
plastic deformation
finite element method

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HIERARCHICAL MODELING OF PLASTICITY AND STRENGTH OF TRABECULAR BONE. / Jasiuka, Iwona; Sabet, Fereshteh; Abueidda, Diab W; Hamed, Elham; Jin, Ouli; Koric, Seid.

2016.

Research output: Contribution to conferencePaper

Jasiuka, Iwona ; Sabet, Fereshteh ; Abueidda, Diab W ; Hamed, Elham ; Jin, Ouli ; Koric, Seid. / HIERARCHICAL MODELING OF PLASTICITY AND STRENGTH OF TRABECULAR BONE. 2 p.
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abstract = "We study computationally, using a finite element method, plastic deformations and strength of trabecular bone. We represent the trabecular bone as a material with hierarchical structure and consider four structural scales: the nanoscale (mineralized collagen fibril), the sub-microscale (single lamella consisting of mineralized collagen fibrils), the microscale (trabecular bone tissue), and the mesoscale (trabecular cellular network). At each scale we model the elastic and inelastic responses of bone until failure. We account for the experimentally observed failure mechanisms. Theoretical results are in good agreement with experiments conducted on cylindrical porcine trabecular bone samples.",
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T1 - HIERARCHICAL MODELING OF PLASTICITY AND STRENGTH OF TRABECULAR BONE

AU - Jasiuka, Iwona

AU - Sabet, Fereshteh

AU - Abueidda, Diab W

AU - Hamed, Elham

AU - Jin, Ouli

AU - Koric, Seid

PY - 2016

Y1 - 2016

N2 - We study computationally, using a finite element method, plastic deformations and strength of trabecular bone. We represent the trabecular bone as a material with hierarchical structure and consider four structural scales: the nanoscale (mineralized collagen fibril), the sub-microscale (single lamella consisting of mineralized collagen fibrils), the microscale (trabecular bone tissue), and the mesoscale (trabecular cellular network). At each scale we model the elastic and inelastic responses of bone until failure. We account for the experimentally observed failure mechanisms. Theoretical results are in good agreement with experiments conducted on cylindrical porcine trabecular bone samples.

AB - We study computationally, using a finite element method, plastic deformations and strength of trabecular bone. We represent the trabecular bone as a material with hierarchical structure and consider four structural scales: the nanoscale (mineralized collagen fibril), the sub-microscale (single lamella consisting of mineralized collagen fibrils), the microscale (trabecular bone tissue), and the mesoscale (trabecular cellular network). At each scale we model the elastic and inelastic responses of bone until failure. We account for the experimentally observed failure mechanisms. Theoretical results are in good agreement with experiments conducted on cylindrical porcine trabecular bone samples.

M3 - Paper

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