• Nikhil Mangesh Kulkarni
• Dr. Achchhe Lal

In the present manuscript statistics of transverse nonlinear central deflection of elastically supported piezoelectric laminated composite sandwich plate (ESPLCSP) subjected to hygro-thermo-mechanical loading using micromechanical approach is evaluated. System randomness as micro-level material properties of fiber and matrix, material properties of piezoelectric, laminate thickness, lamination angle, foundation parameters, and load intensity are taken as independent random variables. The mechanical loading is taken as uniformly distributed and sinusoidal loadings. The secant function based shear deformation theory (SFSDT) with von-Karman nonlinearity is used for basic formulation. The elastic and hygrothermal properties of the composite material are considered to be dependent on temperature and moisture concentration have been evaluated utilized micromechanical modeling. A Newton-Raphson method based on C0 nonlinear finite element method combined with mean centered second order perturbation technique (SOPT) proposed by present authors for the composite plate is extended for sandwich composite plate. The effect of random system properties with changing the plate geometry, stacking sequences, support conditions, foundation parameters, piezoelectric layers, fiber volume fraction and temperature, and moisture distribution on ESPLCSP is presented. The performance of proposed approach is validated through comparison with those available in the literatures and independent Monte Carlo simulation (MCS).

Laminated composite sandwich plate, Nonlinear bending response, Random system properties, Elastic foundation, SOPT, secant function based shear deformation theory

"HYGRO-THERMO-MECHANICALLY INDUCED NONLINEAR TRANSVERSE CENTRAL DEFLECTION ANALYSIS OF PIEZOELECTRIC ELASTICALLY SUPPORTED LAMINATED COMPOSITE SANDWICH PLATE WITH SYSTEM RANDOMNESS USING SECANT FUNCTION BASED SHEAR DEFORMATION THEORY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.513-537, June 2019, Available :http://www.jetir.org/papers/JETIR1906H54.pdf

"HYGRO-THERMO-MECHANICALLY INDUCED NONLINEAR TRANSVERSE CENTRAL DEFLECTION ANALYSIS OF PIEZOELECTRIC ELASTICALLY SUPPORTED LAMINATED COMPOSITE SANDWICH PLATE WITH SYSTEM RANDOMNESS USING SECANT FUNCTION BASED SHEAR DEFORMATION THEORY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp513-537, June 2019, Available at : http://www.jetir.org/papers/JETIR1906H54.pdf