G.F. Harris , N. Yoganandan , D. Schmaltz , J. Reinartz , F. Pintar , A. Sances Jr
{"title":"A biomechanical impact test system for head and facial injury assessment and model development","authors":"G.F. Harris , N. Yoganandan , D. Schmaltz , J. Reinartz , F. Pintar , A. Sances Jr","doi":"10.1016/0141-5425(93)90096-H","DOIUrl":null,"url":null,"abstract":"<div><p>A biomechanical test system has been developed and validated to conduct controlled uniaxial impact experiments of head and facial trauma. The design reduces off-axis accelerations which are not in the direction of impact and allows accurate positioning of test specimens. Impact forces, displacement histories, impulses at impact and spectral responses are compared to free-fall test results at contact velocities representative of facial injuries (2.5, 3.1 and 3.8 m s<sup>−1</sup>). Models based on the experimental results are developed to reveal stiffness and inertial properties of impact for use in the design of biomechanically protective steering wheels, air bags and other potential impact structures. The results indicate that the system provides a flexible yet controllable method for positioning and testing impact structures reliably.</p></div>","PeriodicalId":75992,"journal":{"name":"Journal of biomedical engineering","volume":"15 1","pages":"Pages 67-73"},"PeriodicalIF":0.0000,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0141-5425(93)90096-H","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of biomedical engineering","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/014154259390096H","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
Abstract
A biomechanical test system has been developed and validated to conduct controlled uniaxial impact experiments of head and facial trauma. The design reduces off-axis accelerations which are not in the direction of impact and allows accurate positioning of test specimens. Impact forces, displacement histories, impulses at impact and spectral responses are compared to free-fall test results at contact velocities representative of facial injuries (2.5, 3.1 and 3.8 m s−1). Models based on the experimental results are developed to reveal stiffness and inertial properties of impact for use in the design of biomechanically protective steering wheels, air bags and other potential impact structures. The results indicate that the system provides a flexible yet controllable method for positioning and testing impact structures reliably.
开发并验证了一种生物力学测试系统，用于进行头部和面部创伤的受控单轴冲击实验。该设计减少了不在冲击方向的离轴加速度，并允许准确定位试样。将冲击力、位移历史、冲击脉冲和光谱响应与代表面部损伤的接触速度(2.5、3.1和3.8 m s−1)下的自由落体测试结果进行比较。基于实验结果建立了模型，以揭示碰撞的刚度和惯性特性，用于设计生物力学保护方向盘、气囊和其他潜在的碰撞结构。结果表明，该系统为冲击结构的可靠定位和测试提供了一种灵活可控的方法。
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