Progress in finite element model and biomechanical simulation analysis of blast-induced traumatic brain injury

doi:10.3877/cma.j.issn.2095-9141.2025.03.007

Abstract

Abstract:

Blast-induced traumatic brain injury (bTBI) has a high incidence in modern warfare, and shockwave is the main injury factor. However, the biomechanical mechanism of bTBI is still controversial. Finite element model (FEM) is able to analyze the complex mechanical change rules between and within objects and predict the response effects. In this paper, a review of the research on the establishment of FEM and its biomechanical simulation analysis of bTBI is presented, in order to provide reference for the clarification of the biomechanical mechanism of bTBI and the development of its protective measures.

Key words: Blast-induced traumatic brain injury, Finite element model, Shockwave, Biomechanics

Yanteng Li, Gang Cheng, Jianning Zhang. Progress in finite element model and biomechanical simulation analysis of blast-induced traumatic brain injury[J]. Chinese Journal of Neurotraumatic Surgery(Electronic Edition), 2025, 11(03): 180-184.

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References 34

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组织类型	密度（kg/m³）	杨氏模量（GPa）	泊松比
颅骨（作为整体）	1210~2070	6.5~8.0	0.20~0.30
板障	1000~1750	0.56~5.66	0.22~0.30
皮质骨	2100~3000	6~15	0.22~0.25
硬脑膜	1130	0.0315	0.45
大脑镰	1130	0.0315	0.23~0.45

组织类型	密度（kg/m³）	杨氏模量（GPa）	泊松比
颅骨（作为整体）	1210~2070	6.5~8.0	0.20~0.30
板障	1000~1750	0.56~5.66	0.22~0.30
皮质骨	2100~3000	6~15	0.22~0.25
硬脑膜	1130	0.0315	0.45
大脑镰	1130	0.0315	0.23~0.45

组织类型	密度（kg/m³）	体积模量（GPa）	短期剪切模量（kPa）	长期剪切模量（kPa）	衰减系数（s^-1）
灰质	1040~1060	2.19~2.28	10~34	2.0~6.4	80~700
白质	1040~1060	2.19	12.5~41	2.5~7.8	80~700
脑干	1040~1060	2.19	22.5~58	4.5~7.8	80~400
小脑	1040~1060	2.19	0.41~12.5	0.23~2.0	80~125

组织类型	密度（kg/m³）	体积模量（GPa）	短期剪切模量（kPa）	长期剪切模量（kPa）	衰减系数（s^-1）
灰质	1040~1060	2.19~2.28	10~34	2.0~6.4	80~700
白质	1040~1060	2.19	12.5~41	2.5~7.8	80~700
脑干	1040~1060	2.19	22.5~58	4.5~7.8	80~400
小脑	1040~1060	2.19	0.41~12.5	0.23~2.0	80~125

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