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İndeks: Conference Proceedings Citation Index – Science (CPCI-S) × Konu: Microstretch ×

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Listeleniyor 1 - 3 / 3
  • Küçük Resim
    Yayın
    3-D Vibration analysis of microstretch plates
    (Springer, 2008) İnan, Esin; Kiriş, Ahmet
    In the present work, rectangular plates with various boundary conditions are Studied, which are modeled by the rnicrostretch theory. Wave propagation problem is investigated and new waves are observed which do not appear in the classical theory of elasticity. Ritz method is used for this investigation. Triplicate Chebyshev series, multiplied by boundary functions, are used as admissible functions and the frequency equations of the micro-stretch plate are obtained by the use of Chebyshev-Ritz method. The additional frequencies due to the microstructure of the plate are observed among the values of the frequencies obtained from the classical theory of elasticity. We observed that these additional frequencies disappear while the all microstretch constants are taken as zero.
  • Küçük Resim
    Yayın
    Estimation of microstretch elastic moduli by the use of vibrational data
    (Springer, 2007) Kırış, Ahmet; İnan, Esin
    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.
  • Küçük Resim
    Yayın
    A hollow cylinder problem in microstretch theory
    (Springer-Verlag, 2011) İnan, Esin; Kırış, Ahmet
    A hollow cylinder micro-damaged tube under pressure problem is discussed. Micro damage is modeled with Eringen's microstretch theory and the displacement and its comparison with classical result are given.