Enhancing Crash Box Performance: Study of Single-Screw Dynamics for Improved Structural Integrity and Force Levels in Low-Speed Frontal Crashes
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Abstract
This study investigates the force acting on a single screw within a square crash box during low-speed frontal crash simulations against a rigid wall. Force-displacement (F-D) curves were generated using aluminium alloy 5052 crash boxes ranging in thickness from 2mm to 5mm. Results indicate a progressive increase in force from 13.387 kN to 41.334 kN and a decrease in displacement from 212.97mm to 134.54mm with increasing thickness. This suggests improved structural integrity and higher resistance to deformation with thicker crash box configurations, aligning with principles of vehicle safety design. Future research will explore the development of mechanically adjustable front structures and methods to enhance screw configurations for increased force absorption. This investigation enhances the understanding of crashworthiness and offers insights into optimizing crash box design to enhance occupant safety in low-speed frontal crashes.
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