What question did this study set out to answer?

To investigate the impact of auxetic core topologies on vibration suppression and flutter control in sandwich plates.

Vibration Suppression and Flutter Control in Sandwich Plates using Strut-Augmented Cores

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Analysis demonstrates enhanced vibration suppression in auxetic sandwich plates, suggesting better performance under aerodynamic loading.

To investigate the impact of auxetic core topologies on vibration suppression and flutter control in sandwich plates.
Systematic study of four auxetic core topologies: cell 0, cell B, square, and star.
Utilization of a hybrid method combining voxel-based 3D numerical homogenization and first-order shear deformation plate theory (FSDT).
Modal analysis to assess frequency separation and mode localization.
Comparison with high-fidelity finite element simulations.
Increased frequency separation and mode localization with added star strut.
Substantial improvement in vibration attenuation over conventional cores.
Delayed flutter onset in star and cell-B topologies under high-speed aerodynamic loading.

Chidambaram et al. (2025) studied this question.

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