A Human Head Finite Element Model for Blunt Ballistic Impact Injury Assessment

Bin CHEN; Song WANG; Xingyu LIU; Zhaohui ZHANG; Wuyang LI

doi:10.12382/bgxb.2024.1022

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A Human Head Finite Element Model for Blunt Ballistic Impact Injury Assessment

更新时间：2025-09-25

- A Human Head Finite Element Model for Blunt Ballistic Impact Injury Assessment
- Acta Armamentarii Vol. 46, Issue 8, Pages: 241022(2025)
- 作者机构：
  
  1. 武警工程大学研究生大队, 陕西西安 710086
  2. 武警工程大学装备管理与保障学院, 陕西西安 710086
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2024.1022
  CLC：
- Received：12 November 2024，
  
  Published Online：28 August 2025，
  
  Published：31 August 2025
- 稿件说明：
移动端阅览
Bin CHEN, Song WANG, Xingyu LIU, et al. A Human Head Finite Element Model for Blunt Ballistic Impact Injury Assessment[J]. Acta Armamentarii, 2025, 46(8): 241022.
DOI：

Bin CHEN, Song WANG, Xingyu LIU, et al. A Human Head Finite Element Model for Blunt Ballistic Impact Injury Assessment[J]. Acta Armamentarii, 2025, 46(8): 241022. DOI： 10.12382/bgxb.2024.1022.

摘要

为清晰阐明钝性弹道冲击下人体头部的受损机理

基于THUMS(Total Human Model for Safety)模型

通过材料参数优化、比例缩放及流固耦合方法

构建符合中国50百分位成年男性头部特征的有限元模型。以LS-DYNA(Livermore Software Technology Corporation's Dynamic Analyzer)软件为仿真平台

采用任意拉格朗日-欧拉算法定义脑脊液流体特性

优化颅骨与脑组织的弹塑性材料参数

并通过网格变形技术实现头部尺寸与解剖结构的本土化适配。选取前额、顶壁、枕部及后窝等典型易损区

对比Nahum尸体实验及THUMS模型数据

验证模型的生物力学响应。研究结果表明:改进模型在易损区域的颅内压峰值分别为150kPa、75kPa、53kPa及69kPa

与实验数据误差为4%~10%

且动态响应曲线形态一致;脑组织最大von Mises应力(29.5kPa)与颅骨主应力(18.7kPa)均接近Marjoux和Yoganandan仿真实验阈值

证实模型可有效预测颅脑损伤风险。结合北约AEP-103标准评估表明

典型冲击下前额颅内压峰值达511.1kPa

远超颅骨骨折阈值(150kPa)

凸显现有防护装备的优化需求。该模型应用性强

可为钝性弹道冲击下的头部损伤评估与安全防护提供方法参照和理论支撑。

Abstract

In order to clarify the injury mechanism of human head under blunt ballistic impact

a finite element model fitting the characteristics of Chinese 50th percentile male adult heads is constructed by the material parameter optimization

proportional scaling and fluid-structure interaction methods based on the total human model for safety (THUMS) model.LS-DYNA (Livermore software technology corporation's dynamic analyzer) is taken as a simulation platform

and the arbitrary Lagrangian-Eulerian algorithm is used to define the fluid characteristics of cerebrospinal fluid

optimize the elastic-plastic material parameters of skull and brain tissue

and realize the localization of head size and anatomical structure through mesh deformation technology.The biomechanical response of the model is verified by comparing the data of Nahum cadaver experiment and THUMS model for the typical vulnerable parts

such as forehead

parietal wall

occipital and posterior fossa

of human body.The results show that the peak values of intracranial pressure in the vulnerable area of the improved model are 150kPa

75kPa

53kPa and 69kPa

respectively

and the error between the improved model and the experimental data is 4%-10%

and the shape of the dynamic response curve is consistent.The maximum von Mises stress of brain tissue (29.5kPa) and the principal stress of skull (18.7kPa) are close to the threshold of Marjoux and Yoganandan simulation experiment

which verifies that the proposed model could effectively predict the risk of craniocerebral injury.The assessment based on NATO AEP-103 standard indicates that the peak value of the forehead intracranial pressure under typical impact is 511.1kPa

far exceeding the threshold of skull fracture (150kPa)

which highlights the optimization needs of existing protective equipment.The proposed model has strong applicability and can provide reference and theoretical support for head injury assessment and safety protection under blunt ballistic impact.

关键词

Keywords

references

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