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Correcting Measurement Nonlinearity in Dynamic Nanoindentation

[+] Author Affiliations
Brian P. Mann, Siddharth Hazra

University of Missouri

Jian Liu

University of Florida

Paper No. IMECE2006-15070, pp. 443-452; 10 pages
doi:10.1115/IMECE2006-15070
From:
  • ASME 2006 International Mechanical Engineering Congress and Exposition
  • Applied Mechanics
  • Chicago, Illinois, USA, November 5 – 10, 2006
  • Conference Sponsors: Applied Mechanics Division
  • ISBN: 0-7918-4766-7 | eISBN: 0-7918-3790-4
  • Copyright © 2006 by ASME

abstract

This paper investigates methods of improving measurement interpretations in dynamic nanoindentation. In particular, a shift in the system's primary resonance is observed experimentally and investigated through modeling and numerical studies. The result of these investigations is that different sources of nonlinearity, namely, nonlinearities from the tip-sample contact force and the indenter's capacitive transducer, compete to alter the system's primary and secondary resonances. Furthermore, this study implies that the accurate characterization of a material surface requires the implementation of higher fidelity models that include nonlinear expressions, as opposed to linearized versions, for the tip-sample contact force and transducer electrostatic force.

Copyright © 2006 by ASME
Topics: Nanoindentation

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