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Hossein Ashrafi

Hossein Ashrafi

Assistant Professor

College: Faculty of Mechanical Engineering

Department: Mechanical Engineering - Solid Design

Degree: Ph.D

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Hossein Ashrafi

Assistant Professor Hossein Ashrafi

College: Faculty of Mechanical Engineering - Department: Mechanical Engineering - Solid Design Degree: Ph.D |

  •  Position: Assistant Professor of Solid Mechanics and Applied Design
  •  Institution: Faculty of Mechanical Engineering, University of Kashan, Iran
  •  Researcher ID: P-8090-2014
  •  Scopus Author ID: 12793997500
  •  M.Sc. (Sept. 2005 – August 2008): Graduated from Shiraz University, with Overall GPA 17.67 out of 20.
  •  Ph.D. (Sept. 2010 – August 2014): Graduated from K.N. Toosi University, with Overall GPA 19.43 out of 20.
  • Address: No. 316, 3rd Floor, Faculty of Mech. Eng., University of Kashan, Ghotbravandi Blvd., Kashan, Iran
  • ​P.O. Box:  8731751167
  • Telephone:  (+98) 31 55913439
  • Fax:  (+98) 31 55913444
  • URL:  https://faculty.kashanu.ac.ir/hashrafi/en​

 

نمایش بیشتر

Measurement of Mechanical Properties of Bones and Teeth Using Nanoindentation

AuthorsH Ashrafi - M Farid
Conference TitleIEEE 16th Iranian Conference on Biomedical Engineering
Holding Date of Conference2009-12-30
Event PlaceTehran
PresentationSPEECH
Conference LevelInternational Conferences

Abstract

Nanoindentation has recently appeared as a powerful tool for measuring of the nano and micro-scale mechanical properties of bio-tissues and other biomaterials. By continuing of advancements in indentation data analysis, will increase the method’s utility in the characterization of biomaterials. However, the viscoelastic constitutive effects of bio-tissues during the nanoindentation are seldom considered rigorously, which they are very significant in viscoelastic contact mechanics. In this paper, we review the current state of nanoindentation, where information on material behaviour and properties in micro-structural features is obtained from the indenter load and depth measuring continuously during the loading and unloading procedure. In the following, we present adaptations for indentation of especially bone and teeth, and state a lately developed method for improving the viscoelastic constitutive effects during the nanoindentation.

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