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| 人下颌骨枪弹伤的三维有限元建模与数值分析 | |
| 引用本文： | 鄢兰元,陈渝斌,张纲,缪莹赟,谭颖徽.人下颌骨枪弹伤的三维有限元建模与数值分析[J].第三军医大学学报,2010,32(8). |
| 作者姓名： | 鄢兰元 陈渝斌 张纲 缪莹赟 谭颖徽 |
| 作者单位： | 1. 第三军医大学新桥医院口腔科,重庆,400042 2. 第三军医大学大坪医院野战外科研究所口腔科,重庆,400042 3. 重庆大学传动实验室,重庆,400044 |
| 基金项目： | 全军医学科研“十一五”计划(08G083,06Z045)~~ |
| 摘 要： | 目的利用计算机辅助工程技术,动态仿真不同入射角度子弹侵彻三维下颌骨模型过程。方法对正常志愿者颌面部进行薄层CT扫描,将获得的下颌骨数据以DICOM标准通过Mimics软件进行三维实体重建,在LS-DYNA软件中模拟7.62 mm弹丸以不同入射速度(713.8、1 400 m/s)和不同入射角度(90°、67.5°、45°)致伤下颌骨模型过程。结果建立了形态细致逼真、相似性好的人下颌骨三维有限元模型,成功模拟了人下颌骨弹丸的致伤过程,当7.62 mm弹丸入射角度一致时,入射速度越大,撞击能量越大;当入射速度一致,入射角度为45°组的致伤能量明显高于90°及67.5°组。下颌骨枪弹伤模型出口面积大于入口面积。结论薄层CT、DICOM标准的应用使得有下颌骨限元模型的建立更为精确,利用有限元仿真技术动态模拟人下颌骨弹丸致伤的方法是可行的。 |
| 关 键 词： | 枪弹伤 有限元 仿真模拟 下颌骨 DICOM |
Three-dimensional finite element modeling and numerical analysis on gunshot wound of human mandible |
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| Yan Lanyuan,Cheng Yubin,Zhang Gang,Miao Yingyun,Tan Yinghui.Three-dimensional finite element modeling and numerical analysis on gunshot wound of human mandible[J].Acta Academiae Medicinae Militaris Tertiae,2010,32(8). | |
| Authors: | Yan Lanyuan Cheng Yubin Zhang Gang Miao Yingyun Tan Yinghui |
| Institution: | 1Department of Stomatology;Xinqiao Hospital;Third Military Medical University;Chongqing;400037;2Department of Stomatology;Institute of Surgery Research;Daping Hospital;400042;3Laboratory of Transmission;Chongqing University;400044;China |
| Abstract: | Objective To simulate the dynamic procedure of bullet damage to the three-dimensional(3D) finite element(FE) model of mandible from different angle with computer-aided engineering.Methods A mandible was scanned by thin-layer CT,and then CT images were analyzed and managed with Dicom standard and Mimics software.At the same time,a simulation of the 3D FE model penetrated by a 7.62-mm bullet was carried out through LS-DYNA software from different angle.Results A 3D FE model of human mandible was established w... |
| Keywords: | ballistic penetration finite element dynamic simulation mandible Dicom |
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