头部钝器损伤实验与仿真分析

中国临床解剖学杂志 ›› 2013, Vol. 31 ›› Issue (5): 572-576.

头部钝器损伤实验与仿真分析

陈兴武¹,　张美超²,　利焕祥¹,　李杰¹,　张荆¹

1.东莞刑事科学技术研究所，广东东莞 523000；　2.南方医科大学解剖学教研室，广东省医学生物力学重点实验室, 广州 510515

收稿日期:2013-02-16 出版日期:2013-09-25 发布日期:2013-10-16
作者简介:陈兴武（1970-），男，广东省东莞市人，硕士，副主任法医师，主要从事法医解剖学和生物力学方面研究
基金资助:
公安部应用创新计划项目（2006YYCXGDST141）

Head blunt injury in experimental and simulation analysis

CHEN Xing-wu¹, ZHANG Mei-chao², LI Huan-xiang¹, LI Jie¹, ZHANG Jing¹

1.Dongguan Institute of Criminal Science and Technology，Dongguan 523000,China; 2.Department of Anatomy，Key Lab of Medical Biomechanics of Guangdong Province, Southern Medical University, Guangzhou 510515, China

Received:2013-02-16 Online:2013-09-25 Published:2013-10-16

摘要/Abstract

摘要：

目的　为了研究头部在钝器作用下的生物力学响应及损伤机理。方法　利用CT图像数据和MRI图像数据对头部骨骼与内部软组织进行几何重建，然后画分网格，构建颅脑有限元模型。另一方面，对连于躯干的头部标本进行10 m/s的低速冲击，测试冲击部位接触力、顶部应变及冲击的对侧（枕部）加速度。把构建的有限元模型导入MADYMO软件进行相同条件下模拟仿真，从输出模块里输出相应部位的结果。结果　仿真结果表明模型的头部接触力、顶部应变、对撞侧加速度与头部标本冲击实验测得值能较好吻合。结论　建立的头部有限元模型及采用的仿真方法可满足头部钝器损伤的仿真研究需要。

关键词: , 头部有限元模型, 损伤生物力学, 法医学, 钝器损伤

Abstract:

Objective　This study aims to investigate the head biomechanical responses and the mechanism of injury in blunt injury.　Methods　CT and MRI images of the human head were obtained to reconstruct the three-dimensional finite element(FE) model of the human head, including scalp, skull and the major internal soft tissues. Moreover, through a frontal impact to a cadaver head ,the contact force , the strain in the parital bone and the accceleration-time histories of the head were recorded. And then , the FE model was introduced into the biomechanical software MADYMO to simulate the aforementioned head impact. The time-history curves were created by the post processor of MADYMO. Results　The model was validated against cadaver responses for blunt impact. Good correlation between the model and the cadaver responses were achieved for the force , strain and acceleration.　Conclusions　The FE model and the simulation method can be used for head injury mechanism in medical simulation research.

Key words: Finite element model of the head, Injury biomechanics, Forensic science, Blunt injuries

中图分类号:

R318.01

陈兴武, 张美超, 利焕祥, 李杰, 张荆. 头部钝器损伤实验与仿真分析[J]. 中国临床解剖学杂志, 2013, 31(5): 572-576.

CHEN Xin-Wu, ZHANG Mei-Chao, LI Huan-Xiang, LI Jie, ZHANG Jing. Head blunt injury in experimental and simulation analysis[J]. Chinese Journal Of Clinical Anatomy, 2013, 31(5): 572-576.

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