Abstract

In this paper, the dynamic behaviors of porcine ribs under three-point bending were investigated based on finite element simulations. Using finite element modeling, three-point bending Split Hopkinson pressure bar apparatus was established and then implemented in FEM software in order to reproduce experimental configurations. Sensitivity studies were conducted to investigate the effects of geometrical and mechanical parameters such as cortical thickness, curvature radius and strain rate on dynamic behaviors of ribs. The numerical results of force-displacement relationship and fracture pattern of ribs correspond well with the experimental data in the literature.

中文翻译：

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受到高速冲击的肋的几何和机械参数的影响。数值调查

摘要

本文基于有限元模拟研究了猪肋骨在三点弯曲下的动力学行为。使用有限元建模，建立了三点弯曲分裂霍普金森压力杆装置，然后在有限元软件中实施，以重现实验配置。敏感性研究旨在调查几何和机械参数，如皮质厚度、曲率半径和应变率对肋骨动态行为的影响。肋的力-位移关系和断裂模式的数值结果与文献中的实验数据吻合良好。