Functionally graded materials (FGMs) are composite materials that exhibit a microstructure that varies locally in order to achieve a specific type of local material properties distribution. In recent years, FGMs appear to be more interesting in engineering application since they present an enhanced performance against deformation, fracture, and fatigue. The purpose of the present work is to present evidence of the excellent strength properties of a new graded composite that is inspired by the human teeth. The outer surface of the teeth exhibits high surface strength while it is brittle and wear resistant, whereas the inner part is softer and flexible. The specific variation in Young’s modulus along the thickness of the presented composite is of particular interest in our case. The present work presents a finite element analysis and an experimental verification of an actual composite with elastic modulus that follows approximately the theoretical distribution observed in the teeth.
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e-mail: zisis@metal.ntua.gr
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January 2010
Research Papers
Development of Strong Surfaces Using Functionally Graded Composites Inspired by Natural Teeth—Finite Element and Experimental Verification
Th. Zisis,
Th. Zisis
Department of Civil Engineering, Laboratory for Strength of Materials and Micromechanics,
e-mail: zisis@metal.ntua.gr
University of Thessaly
, Volos 38336, Greece
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A. Kordolemis,
A. Kordolemis
Department of Civil Engineering, Laboratory for Strength of Materials and Micromechanics,
University of Thessaly
, Volos 38336, Greece
Search for other works by this author on:
A. E. Giannakopoulos
A. E. Giannakopoulos
Department of Civil Engineering, Laboratory for Strength of Materials and Micromechanics,
University of Thessaly
, Volos 38336, Greece
Search for other works by this author on:
Th. Zisis
Department of Civil Engineering, Laboratory for Strength of Materials and Micromechanics,
University of Thessaly
, Volos 38336, Greecee-mail: zisis@metal.ntua.gr
A. Kordolemis
Department of Civil Engineering, Laboratory for Strength of Materials and Micromechanics,
University of Thessaly
, Volos 38336, Greece
A. E. Giannakopoulos
Department of Civil Engineering, Laboratory for Strength of Materials and Micromechanics,
University of Thessaly
, Volos 38336, GreeceJ. Eng. Mater. Technol. Jan 2010, 132(1): 011010 (9 pages)
Published Online: November 5, 2009
Article history
Received:
January 14, 2009
Revised:
May 13, 2009
Online:
November 5, 2009
Published:
November 5, 2009
Citation
Zisis, T., Kordolemis, A., and Giannakopoulos, A. E. (November 5, 2009). "Development of Strong Surfaces Using Functionally Graded Composites Inspired by Natural Teeth—Finite Element and Experimental Verification." ASME. J. Eng. Mater. Technol. January 2010; 132(1): 011010. https://doi.org/10.1115/1.3184038
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