Temperature dependent thermomechanical bending response of functionally graded sandwich plates

Abstract

A higher-order shear deformation plate theory (HSDT) is applied in this work to study the thermomechanical bending behavior of sandwich plates composed of functionally graded (FG) face sheets and fully ceramic core. Material properties of the FG sandwich plate are dependent on temperature and supposed to be graded continuously across the sandwich plate thickness direction. Power-law model is adopted to describe continuous variation of material properties of FG sandwich plate. Temperature variation along the thickness direction is obtained by solving the one-dimensional heat conduction equation. An accurate solution of temperature variation along the thickness direction is employed by taking into account the thermal conductivity, the inhomogeneity parameter and the sandwich schemes. The governing equations of simply-supported FG sandwich plates are derived by means of the Hamilton's variational principle combined with the Navier's solutions. Numerical results indicate the impact of volume fraction index, temperature difference and side-to-thickness ratio on the deflections and stresses are carried out. The accuracy of the proposed five-order shear deformation theory is validated by comparing it with some available solutions in the literature. The present model is simple and can theoretically cover the existing polynomial models.

Effect of bi-directional material gradation on thermo-mechanical bending response of metal-ceramic FGM sandwich plates using inverse trigonometric shear deformation theory

“…The variation of material properties for the UDFGM plate is considered along thickness direction following the power law distribution method. Further non-dimensional centre deflection and normal stress are compared with available results by Daikh et al (2020). Tables 2-4 present the comparison study of non-dimensional centre deflection and normal stress for simply supported UDFGM sandwich plate under thermo-mechanical loading.…”

“…Material properties of UDFGM sandwich plates have been considered temperature-dependent in these studies. Daikh et al (2020) investigated the bending behaviour of temperature-dependent FGM plates functioning in thermo-mechanical load. Sah and Ghosh (2021a) employed ITSDT to investigate the structural responses of the FGM plates.…”

Free vibration analysis of a skew sandwich plate with bamboo biocomposite and polylactic acid core under temperature and moisture conditions

“…Numerous studies use different core materials in a sandwich structure, such as functionally graded material, polylactic acid (PLA), viscoelastic material, ceramic, and carbon nanotubereinforced composite core. [30][31][32] Zenkour and Alghanmi 30 investigated the static behavior of sandwich plates comprised of a functionally graded material core and piezoelectric face sheets. The study investigates the stresses and center deflection produced in sandwich plates when subjected to sinusoidal thermo-electro-mechanical loading conditions.…”

“…Katariya et al 31 investigated the vibrational response of skewed laminated composite sandwich (SLCS) plates with epoxy-filled softcore numerically as well as experimentally. Daikh et al 32 investigated the static behavior of ceramic core sandwich plates exposed to thermo-mechanical stresses using higher-order shear deformation theory (HSDT). Literature shows that PLA has essential features among the different core materials, such as biodegradability, high tensile strength, and stiffness.…”

Neural Network-Based Prediction Model to Investigate the Influence of Temperature and Moisture on Vibration Characteristics of Skew Laminated Composite Sandwich Plates

“…The central deflection and the stresses generated in the sandwich plates acted upon by sinusoidal thermo-electromechanical loads were reported. Daikh et al [24] utilized the higher-order shear deformation theory (HSDT) to investigate the static behavior of sandwich plates experiencing the thermo-mechanical loads. Temperature-dependent material properties were considered for the study.…”