Abstract
During the service life of polymer matrix composites, various loading conditions often occur. To use such materials effectively in high-performance applications, their behaviors under hygrothermal effects should be clearly understood. Firstly, a laminated spherical shell panel is established under hygrothermal effects, followed by geometric properties’ analysis and internal forces analysis of the shell. Then, the constitutive relations related to the hygrothermal effects are considered in the laminated spherical shell panel, and equations of motion with geometric nonlinearity are derived by employing Hamilton’s principle; thereafter, solution of equations of motion is obtained using the Navier solution technique. Finally, influences of the hygrothermal effects on nondimensionalized center deflections, nondimensionalized fundamental natural frequency, and vibration-deflection amplitude for the shell are discussed.
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