Finite element analysis of machining damage in manufacturing ceramic implants

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dc.contributor Jordon, J. Brian
dc.contributor Weaver, Mark Lovell
dc.contributor.advisor Guo, Yuebin B. Sun, Dongwei 2017-04-26T14:23:20Z 2017-04-26T14:23:20Z 2015
dc.identifier.other u0015_0000001_0001981
dc.identifier.other Sun_alatus_0004M_12422
dc.description Electronic Thesis or Dissertation
dc.description.abstract Ceramics are popular biomaterials used to manufacture orthopedic implants due to their excellent biomechanical properties. The inherent high hardness and brittleness of ceramics make precision machining of implants very difficult to achieve complex geometry and required surface integrity. Currently, grinding with diamond wheels is the most widely used process to machine ceramics. However, the process mechanics and damage mechanism in ceramic machining are not well understood. This work presents an introduction to ceramic implants, a comprehensive assessment on manufacturing of ceramic implants, and a comparison of temperature-dependent mechanical behavior models of Al2O3. Ceramic grinding is often used to machine orthopedic implants, yet a deep understanding of the alumina mechanical behavior, in particular machining damage, is not well established. To have an insight into the process mechanism, a 3D finite element model has been developed for single-grit ceramic grinding using the Johnson–Holmquist constitutive model to predict machined groove topography, subsurface damage, and cutting forces. In addition, the model predictions are correlated with the observed experimental phenomena.
dc.format.extent 181 p.
dc.format.medium electronic
dc.format.mimetype application/pdf
dc.language English
dc.language.iso en_US
dc.publisher University of Alabama Libraries
dc.relation.ispartof The University of Alabama Electronic Theses and Dissertations
dc.relation.ispartof The University of Alabama Libraries Digital Collections
dc.relation.hasversion born digital
dc.rights All rights reserved by the author unless otherwise indicated.
dc.subject.other Mechanical engineering
dc.title Finite element analysis of machining damage in manufacturing ceramic implants
dc.type thesis
dc.type text University of Alabama. Dept. of Mechanical Engineering Mechanical Engineering The University of Alabama master's M.S.

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