Vibrational characteristics of embedded microbeams lying on a two-parameter elastic foundation in thermal environment

AKGÖZ B., CİVALEK Ö.

COMPOSITES PART B-ENGINEERING, vol.150, pp.68-77, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 150
  • Publication Date: 2018
  • Doi Number: 10.1016/j.compositesb.2018.05.049
  • Journal Name: COMPOSITES PART B-ENGINEERING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.68-77
  • Keywords: Microstructures, Thermomechanical, Vibration, Analytical modeling, COUPLE STRESS THEORY, STRAIN GRADIENT THEORY, FUNCTIONALLY GRADED MICROBEAMS, NONLOCAL INTEGRAL MODEL, SIZE-DEPENDENT BEHAVIOR, HIGHER-ORDER SHEAR, BUCKLING ANALYSIS, NANO-BEAMS, CARBON NANOTUBES, NONLINEAR VIBRATION
  • Akdeniz University Affiliated: Yes

Abstract

In the present work, thermo-elastic vibrational behavior of thick microbeams embedded in a two-parameter elastic foundation is studied. A Winkler-Pasternak type elastic foundation model is employed to simulate the interactions between microbeam and elastic medium. Size-dependent constitutive equations and associated boundary conditions are obtained by applying dynamic version of virtual work's principle based on modified couple stress and various beam theories. Several numerical examples are presented to examine the sensibility of various parameters associated with slenderness ratio, temperature rise, length scale, Winkler and shear layer parameters on the natural frequencies and critical temperature point of embedded microbeams.