Utilizing the Design of the Interdigitized Exoskeleton of Phloeodes diabolicus to Create a Modular, Seismic-resistant Pillar

This study investigates the seismic performance of a modular seismic-resistant pillar design, drawing inspiration from the structural resilience of *Phloeodes diabolicus*, the diabolical ironclad beetle. Through FEA simulation and analysis, the pillar demonstrated a peak response at 7.45 Hz, aligning with its natural frequency and the typical frequency range of seismic events. This tuning enables effective energy absorption and response to seismic forces. The pillar exhibited a maximum displacement of 2.49 mm during seismic activity, highlighting its ability to flex and dissipate energy, thereby reducing structural damage. Notably, the pillar returned to a stable state (0 mm displacement) post-seismic events, confirming its resilience. These results support the hypothesis that the modular design allows controlled flexibility, ensuring structural stability during earthquakes.