To enable analysis of the risk of occupants sustaining rib fractures in a crash, generic finite element models of human ribs, one through twelve, were developed. The generic ribs representing an average sized male, were created based on data from several sources and publications. The generic ribs were validated for stiffness and strain predictions in anterior-posterior bending. Essentially, both predicted rib stiffness and rib strain, measured at six locations, were within one standard deviation of the average result in the physical tests. These generic finite elements ribs are suitable for strain-based rib fracture risk predictions, when loaded in anterior-posterior bending.

To ensure that human variability is accounted for in future studies, a rib parametric study was conducted. This study shows that the rib cross-sectional height, i.e., the smallest of the cross-sectional dimensions, accounted for most of the strain variance during anterior-posterior loading of the ribs. Therefore, for future rib fracture risk predictions with morphed models of the human thorax, it is important to accurately address rib cross-sectional height.

为了能够分析乘员在碰撞中承受肋骨骨折的风险，开发了人类肋骨的通用有限元模型（从一到十二个）。通用肋骨代表平均大小的雄性，是根据来自多个来源和出版物的数据创建的。通用肋骨经过验证可用于前后弯曲的刚度和应变预测。本质上，在六个位置测量的预测肋骨刚度和肋骨应变均在物理测试平均结果的一个标准偏差内。当承受前后弯曲时，这些通用的有限元肋骨适用于基于应变的肋骨骨折风险预测。

为了确保在以后的研究中考虑到人的变异性，进行了肋骨参数研究。这项研究表明，肋骨的横截面高度（即横截面尺寸的最小值）是肋骨前后加载过程中应变变化的主要部分。因此，对于使用人体胸部变形模型进行的未来肋骨骨折风险预测，准确解决肋骨横截面高度非常重要。