Piezoelectric and piezomagnetic effects on functionally graded triply periodic minimal surface smart sandwich nanoscale plates using Chebyshev shear deformation theory

Chúng tôi vui mừng thông báo rằng TS. Thái Hoàng Chiến và các đồng nghiệp đã xuất bản công trình có tựa đề "Piezoelectric and piezomagnetic effects on functionally graded triply periodic minimal surface smart sandwich nanoscale plates using Chebyshev shear deformation theory” trên tạp chí Engineering Analysis with Boundary Elements

Tóm tắt:

This study investigates the nanoscale free vibration behavior of a novel smart sandwich nanoplate integrating a functionally graded triply periodic minimal surface (FG-TPMS) core combined with magneto-electro-elastic face sheets. Unlike conventional sandwich structures, this design leverages the mechanical efficiency of FG-TPMS architectures with coupled piezoelectric–piezomagnetic responses of magneto-electro-elastic materials to enhance vibrational performance compared to traditional sandwich composites. The governing equations are formulated using nonlocal strain gradient theory to accurately capture small-scale effects, while isogeometric analysis is employed to ensure high precision and continuity in numerical simulations. Additionally, the displacement approximation is constructed using a newly developed Chebyshev shear deformation theory, which provides improved representation of shear effects in nanoscale plates. The findings demonstrate that synergistic interaction between FG-TPMS topologies, magneto-electro-elastic face sheets and small-scale effects significantly influences natural frequencies. Moreover, this study shows that a larger length scale parameter increases stiffness and raises frequencies, while a higher nonlocal parameter lowers stiffness and reduces frequencies. And the magnetic field strengthens the nanoplate, whereas the electric voltage weakens it. These results offer valuable insights into the dynamic analysis of smart nanostructures with potential applications in aerospace, biomedical engineering and vibration control systems.