A further discussion of nonlinear mechanical behavior for FGM beams under in-plane thermal loading

作者：Ma, L. S.; Lee, D. W.^*

来源：Composite Structures, 2011, 93(2): 831-842.

DOI：10.1016/j.compstruct.2010.07.011

• Functionally graded material beam
• Static behavior
• Dynamic response
• In-plane loading
• Temperature-dependent material properties
• Transverse shear deformation

Due to the variation in material properties through the thickness bifurcation buckling cannot generally occur for plates or beams made of functionally graded materials (FGM) with simply supported edges Further investigation in this paper indicates that FGM beams subjected to an in-plane thermal loading do exhibit some unique and interesting characteristics in both static and dynamic behaviors particularly when effects of transverse shear deformation and the temperature-dependent material properties are simultaneously taken into account In the analysis, based on the nonlinear first-order shear deformation beam theory (FBT) and the physical neutral surface concept, governing equations for both the static behavior and the dynamic response of FGM beams subjected to uniform in-plane thermal loading are derived Then, a shooting method is employed to numerically solve the resulting equations The material properties of the beams are assumed to be graded in the thickness direction according to a simple power law distribution in terms of the volume fractions of the constituents and to be temperature-dependent The effects of material constants, transverse shear

• 出版日期2011-1
• 单位兰州理工大学