• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>SAE Noise and Vibration Conference and Exhibition >A Regional Finite Element Model of the Neck for Bilateral Carotid Artery Injury Assessment in Far Side Crash Configuration
【24h】

A Regional Finite Element Model of the Neck for Bilateral Carotid Artery Injury Assessment in Far Side Crash Configuration

机译：远侧碰撞配置中双侧颈动脉损伤评估的颈部区域有限元模型

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Carotid artery injury due to motor vehicle crash has been attributed to direct impact to the neck and stretching of the artery. This study examines the response of a finite element model of the neck and carotid arteries given a farside vehicle impact. This regional carotid artery model was developed using existing material properties and based on a spine model developed by NHTSA. The finite element model was subjected to loading conditions derived from farside PMHS tests conducted at Medical College of Wisconsin. The PMHS tests represented four inboard belt loading conditions of the neck. The belts were located high on the neck, for maximal compression of the vessel, or low on the neck, for maximal excursion of the head. There was a low-speed and a high-speed test for each of the belt configurations. These boundary conditions were implemented in the model and the response of the carotid was quantified using strain measurements. The high belt configuration resulted in high compressive loading of the ipsilateral vessel with a maximum principal strain of 1.2884 for a low delta-v test. The low belt configuration resulted in higher extension of the contralateral vessel with a maximum principal strain of 1.5874 for a high delta-v test. The high-speed test resulted in higher strain in the carotid arteries. Based on existing values, the model indicated likely intimal failure of the vessel in the more severe scenarios. This study demonstrates the compressive and stretching mechanisms of injury via a finite element model. This research could lead to finite element models that better predict carotid artery injury.
机译：由于机动车崩溃引起的颈动脉损伤归因于导致动脉的颈部和拉伸撞击。本研究检测颈部和颈动脉有限元模型的响应，给出了游览车辆的影响。该区域颈动脉模型是使用现有材料特性开发的，并基于NHTSA开发的脊柱模型。对威斯康星医学院进行的远利PMHS试验进行有限元模型。 PMHS测试代表颈部的四个内侧带载条件。皮带在颈部高高，用于最大压缩血管，或颈部上的低，用于头部最大偏移。每个皮带配置都有一个低速和高速测试。这些边界条件在模型中实施，并且使用应变测量来定量颈动脉的响应。高带型构造导致具有1.2884的最大主要菌株的同侧容器的高压缩载荷，对于低δ-V试验。低带构造导致对侧血管的延伸率高，具有最大主要应变为1.5874，用于高δ-V试验。高速试验导致颈动脉中的较高菌株。基于现有值，模型表明船舶在更严重的情况下可能的内部发生故障。本研究通过有限元模型演示了损伤的压缩和拉伸机制。该研究可能导致有限元模型，更好地预测颈动脉损伤。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号