Hostetler Zachary S, DiSerafino Drew, Kalmar-Gonzalo Alex, Jones Derek, Frazer Lance, Nicolella Dan, Davis Matthew
Elemance LLC, Winston-Salem, USA.
Southwest Research Institute, San Antonio, USA.
Ann Biomed Eng. 2025 Mar 18. doi: 10.1007/s10439-025-03704-3.
Behind Armor Blunt Trauma (BABT) is a phenomenon that occurs when energy is transferred from Personal Protective Equipment (PPE) to the human body and can range from minor to fatal injuries. The current standard to evaluate PPE uses Roma Plastilina No. 1 clay and has a poor correlation to human injuries. To provide a more suitable human surrogate for evaluating risk of injury and functional incapacitation due to BABT, the Incapacitation Prediction for Readiness in Expeditionary Domains: an Integrated Computational Tool (I-PREDICT) has developed a 50th percentile male human body model (HBM) to better understand injury mechanisms in the BABT environment. The model was developed using a hierarchical validation approach including component, regional, and whole torso level tests. Material properties were sourced from literature and I-PREDICT experimental test data, and the model was simulated in 25 different validation cases ranging from component level quasi-static tests to high-rate BABT impacts. The model was stable in all 25 simulations. CORrelation and Analysis (CORA) and BioRank were used to objectively quantify the model response. The average CORA and BioRank across all validation cases were 0.78 ± 0.18 and 0.68 ± 0.27, respectively, indicating 'good' agreement by CORA standards and 'excellent' by BioRank standards. When compared to high-rate BABT experimental impacts on post-mortem human subjects, the I-PREDICT HBM accurately predicted rib fracture probability. The ultimate goal of the I-PREDICT model is to predict injury and functional incapacitation for various in theater military applications. This study highlights the development and validation of the I-PREDICT torso and highlights initial BABT use cases.
装甲钝器伤（BABT）是一种能量从个人防护装备（PPE）转移到人体时发生的现象，其伤害程度从轻微到致命不等。当前评估个人防护装备的标准使用罗马1号橡皮泥，与人体损伤的相关性较差。为了提供一个更合适的人体替身，以评估因装甲钝器伤导致的受伤风险和功能丧失，远征领域准备状态的失能预测：一种综合计算工具（I-PREDICT）开发了一个第50百分位的男性人体模型（HBM），以更好地理解装甲钝器伤环境中的损伤机制。该模型采用分层验证方法开发，包括部件、区域和整个躯干水平测试。材料属性来自文献和I-PREDICT实验测试数据，并在25个不同的验证案例中对该模型进行了模拟，范围从部件水平的准静态测试到高速率的装甲钝器伤冲击。该模型在所有25次模拟中都很稳定。使用相关性和分析（CORA）以及生物排名来客观量化模型响应。所有验证案例的平均CORA和生物排名分别为0.78±0.18和0.68±0.27，表明根据CORA标准为“良好”一致性，根据生物排名标准为“优秀”。与对尸体进行的高速率装甲钝器伤实验冲击相比，I-PREDICT人体模型准确预测了肋骨骨折概率。I-PREDICT模型的最终目标是预测各种战场军事应用中的损伤和功能丧失。本研究重点介绍了I-PREDICT躯干模型的开发和验证，并突出了装甲钝器伤的初始应用案例。
