The present study examines the vibration characteristics of GFRP sandwich beams incorporated with cellular co-continuous architected periodic gyroidal bio-inspired cores. Using the higher-order shear deformation theory (HSDT), free vibration analysis was performed analytically on the designed sandwich beam. Four distinct configurations of bio-inspired cores are considered and 3D printed using Poly-lactic Acid (PLA) material. Subsequently, alternative dynamic approach (ADA) and ASTM E1876 is used to determine the properties of core and laminate. Amongst various bio-inspired beam configurations, GM02 yield better stiffness and prominent shear modulus for its structural weight proportions and parametric studies were performed for all the core models.
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Gunasegeran et al. (2024) studied this question.
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