Investigation of hygrothermal environment effects on the static bending response of nanobeams
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https://doi.org/10.54939/1859-1043.j.mst.FMC.2026.90-97Keywords:
Static bending; Nanobeams; Nonlocal elasticity; Porous; Hygrothermal environments.Abstract
Nano beams are widely utilized as fundamental structural components in microscale and nanoscale sensors, while also serving as critical elements in missile guidance and flight-control systems. This study presents an analytical solution for the static bending behavior of multilayer nanobeams accounting for the combined effects of hygrothermal environments and flexoelectricity. The considered nanobeam is composed of three material layers, in which the core layer is made of a porous material with microporosity. The theoretical formulation is established based on a novel third-order shear deformation theory, and the small-scale effect is incorporated through nonlocal elasticity theory. Several benchmark examples are provided to verify the accuracy and reliability of the proposed model. Thereafter, extensive numerical investigations are performed to elucidate the effects of key parameters on the bending behavior of multilayer nanobeams, with special attention devoted to hygrothermal environmental conditions. The results offer valuable insights for the optimal design and fabrication of multilayer nanobeam structures and contribute to improving their operational performance in practical engineering applications.
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