Nonlinear bending and thermal postbuckling of functionally graded fiber reinforced composite laminated beams with piezoelectric fiber reinforced composite actuators
作者： Hui-Shen Shen , Xiuhua Chen , Xiao-Lin Huang
DOI: 10.1016/J.COMPOSITESB.2015.12.030
关键词: Actuator 、 Parametric statistics 、 Material properties 、 Structural engineering 、 Thermal 、 Materials science 、 Composite material 、 Piezoelectricity 、 Fiber-reinforced composite 、 Stiffness 、 Beam (structure)
摘要: Abstract This paper investigates the nonlinear bending in thermal environments and postbuckling of hybrid laminated beams with piezoelectric fiber reinforced composite (PFRC) actuators resting on an elastic foundation. The beam is made fiber-reinforced composites (FRCs) reinforcement being distributed either uniformly (UD) or functionally graded (FG) piece-wise type along thickness beam. formulations are based a higher order shear deformation theory von Karman strain displacement relationships. beam–foundation interaction thermo-piezoelectric effects also included, material properties both FRCs PFRCs estimated through micromechanical model assumed to be temperature dependent. load-deflection curves equilibrium paths determined by means two-step perturbation approach. property gradient, variation, applied voltage, stacking sequence as well foundation stiffness behaviors investigated comprehensive parametric study.
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