Holographic investigation of the impact response of human heads.
Holographic investigation of the impact response of human heads.
复制标题
人体头部撞击反应的全息研究。
DOI：
10.3171/jns.1984.60.4.0718
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发表时间：
1984
影响因子：
4.1
通讯作者：
H. Hoyer
中科院分区：
文献类型：
--
作者：
J. Dörheide;H. Hoyer
采用红宝石激光双脉冲全息技术研究了完整人头的冲击响应，记录了人头表面的瞬态变形过程。获得了撞击后的频率和加速度测量值。正面撞击时，冲击波在0.2 ~ 0.3 msec后到达对极，最大振幅出现在颞区。撞击拱顶时，变形波在0.15 ~ 0.175 msec后到达颅底。最大振幅中心记录在顶叶和颞叶区域。在一些缝合线处出现干涉线的偏差，显示出不连续性。研究了激波的高频成分。作者认为，通过对冲击响应的进一步研究，可以阐明断裂机制。
The impact response of intact human cadaver heads was studied by means of double-pulsed holography using a ruby laser, and the transient deformation process at the surface of the skull was recorded. Frequency and acceleration measurements following impact were obtained. On frontal impact, the shock wave reached the opposite pole after 0.2 to 0.3 msec, and maximum amplitudes were found in the temporal regions. On impact to the vault, the deformation wave reached the skull base after 0.15 to 0.175 msec. Centers of maximum amplitude were recorded in the parietal and temporal regions. Deviations in the interference lines occurred at some sutures, revealing discontinuities. High-frequency components of the shock wave were demonstrated. The authors believe that fracture mechanisms may be elucidated by further studies of impact responses.