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ESTIMATION OF MICROSTRETCH ELASTIC MODULI BY THE USE OF VIBRATIONAL DATA

  • Ahmet Kırış
  • Esin İnan
Conference paper
  • 1.3k Downloads
Part of the Springer Proceedings in Physics book series (SPPHY, volume 111)

Abstract

In the present work, a nonlinear wave theory is used for the estimation of the material properties of a “microstretch” medium. For this purpose a thin plate is considered and triplicate Chebyshev polynomial series are used as admissible functions to ensure the satisfaction of geometric boundary conditions of the plate. The Ritz technique is applied to derive the frequency equation of the microstretch plate and an optimization procedure is performed by minimising the least square “distance” between computed natural frequencies from the energy method and measured natural frequencies. To realize the optimization procedure, a genetic algorithm is used to estimate the elastic moduli of microstretch medium.

Keywords

Genetic Algorithm Vibration Analysis Admissible Function Linear Strain Geometric Boundary Condition 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer 2006

Authors and Affiliations

  • Ahmet Kırış
    • 1
  • Esin İnan
    • 2
  1. 1.Faculty of Science and Lettersİstanbul Technical UniversityİstanbulTurkey
  2. 2.Faculty of Arts and SciencesIşık UniversityİstanbulTurkey

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