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Purpose <p>The study investigates the thermomechanical vibration and dynamic stability of curved sandwich nanoplates featuring TPMS-based cores and Nickel–Zirconia foam face sheets under thermal loading.</p> Methods <p>A numerical framework was employed, integrating strain-gradient and nonlocal elasticity theories to capture size-dependent effects. The analysis evaluates varying TPMS topologies, foam ratios, and geometric parameters such as curvature and thickness-to-length ratios.</p> Results and Conclusion <p>Findings indicate that while TPMS porosity enhances fundamental frequencies at low temperatures, it induces premature thermal buckling at high temperatures; a balance achieved by optimizing metal-to-ceramic ratios for thermal resilience. Strain-gradient effects significantly bolster stiffness, far outweighing minor nonlocal influences, with the thickness-to-length ratio identified as the dominant geometric factor. This study establishes a critical design roadmap for deploying lightweight, thermally stable nanostructures in aerospace and radar stealth applications.</p>

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Thermomechanical Vibration Analysis of Double-curved Shallow Sandwich Shells with Triply Periodic Minimal Surface Core and Metal–ceramic Foam Faces

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年2月27日

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  • Mustafa Buğday,
  • İsmail Esen

摘要

Purpose

The study investigates the thermomechanical vibration and dynamic stability of curved sandwich nanoplates featuring TPMS-based cores and Nickel–Zirconia foam face sheets under thermal loading.

Methods

A numerical framework was employed, integrating strain-gradient and nonlocal elasticity theories to capture size-dependent effects. The analysis evaluates varying TPMS topologies, foam ratios, and geometric parameters such as curvature and thickness-to-length ratios.

Results and Conclusion

Findings indicate that while TPMS porosity enhances fundamental frequencies at low temperatures, it induces premature thermal buckling at high temperatures; a balance achieved by optimizing metal-to-ceramic ratios for thermal resilience. Strain-gradient effects significantly bolster stiffness, far outweighing minor nonlocal influences, with the thickness-to-length ratio identified as the dominant geometric factor. This study establishes a critical design roadmap for deploying lightweight, thermally stable nanostructures in aerospace and radar stealth applications.