Publication Date

2017

Document Type

Dissertation/Thesis

First Advisor

Salehinia, Iman

Degree Name

M.S. (Master of Science)

Legacy Department

Department of Mechanical Engineering

LCSH

Engineering; Materials science; Mechanical engineering

Abstract

The use of hydroxyapatite (HAP) as a bioactive scaffold and implant coating material has grown with recent advances in tissue engineering and biomaterial design. It is known that computational material design via hierarchical structuring offers reduced cost and increased material performance. The goal of understanding of material behavior and underlying causes across multiple time and length scales offers distinct advantages over traditional experimental material processing and analysis at each scale. To date, no work has been performed which specifically addresses the nanoscale deformation mechanisms of bulk hydroxyapatite or the effects of common defects on its mechanical behavior. Molecular Dynamics (MD) simulations were conducted in LAMMS with OVITO for post processing to determine the involvement of bond species in different loading cases. The effects of strain rate, temperature, vacancy pairs, and porosity on the mechanical properties of the crystal were also qualified.

Comments

Advisors: Iman Salehinia.||Committee members: John Shelton; Sahar Vahabzadeh.||Includes bibliographical references.||Includes illustrations.

Extent

xvii, 156 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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