爆炸与冲击2024，Vol.44Issue(12)：93-104,12.DOI:10.11883/bzycj-2024-0173
基于爆炸损伤的头部有限元模型建立与验证
Establishment and verification of a head finite element model based on explosion injury
摘要
Abstract
In order to better understand the mechanical response and injury mechanism of the head under the action of explosive shock wave,the geometric information of the head was obtained through computerized tomography and magnetic resonance imaging,and a finite element model of the head with fine cranial bone and brain tissue was developed.Based on the existing blast tube cadaver experiments,forward,side,and backward explosive shock numerical simulations were conducted,and the cranial pressure-time history curves and peak cranial pressure were compared to validate the finite element model.The results show that the peak pressures of the four regions in the cranium under the three impact directions are in good agreement with the experimental and simulated data in the literature;there is obvious stress concentration at the suture line of the cranial bone in the simulated blast simulation;the head has a greater risk of injury at the suture line;and the front and back impacts cause more serious head injuries than the side impact under the same explosive shock intensity.The head model established can be used in the study of head injury under explosive loading,and the influence of suture on the biomechanical response of the head can be explored,which has important research significance for blast injury research.关键词
爆炸/有限元模型/模型验证/生物力学/颅内压力Key words
explosion/finite element model/model verification/biomechanics/intracranial pressure分类
数理科学引用本文复制引用
李涛,常利军,陈泰伟,刘浚源,肖淞铭,蔡志华..基于爆炸损伤的头部有限元模型建立与验证[J].爆炸与冲击,2024,44(12):93-104,12.基金项目
国家自然科学基金(12372356,11972158) （12372356,11972158）
湖南省研究生科研创新项目(CX20221044) （CX20221044）
