Effect of Long-Duration Impact on Head
Effect of Long-Duration Impact on Head
复制标题
长时间撞击对头部的影响
作者：
V. Hodgson;L. Thomas
根据损伤程度、头部损伤标准（HIC）和平均加速度作为时间函数对正面撞击以下表面的影响进行了分析：坚硬的平面，破碎的尸体头骨。2. 戴着足球头盔的尸体头顶的草皮。3. 假人穿透挡风玻璃的冲击。4. 人体志愿者安全气囊动态试验。由此得出结论，线性加速度/时间震荡容限曲线可能不存在，只有对相对坚硬的表面产生短上升时间脉冲的冲击才是关键。作者假设，如果头部撞击不包含小于0.015秒的临界HIC间隔，就脑震荡而言，应该认为是安全的。
Impacts have been analyzed in terms of degree of injury, head injury criterion (HIC), and average acceleration as a function of time for frontal impacts against the following surfaces: 1. Rigid flat surface-fractured cadaver skull. 2. Astroturf-head drop of football-helmeted cadaver. 3. Windshield penetrating impact of a dummy. 4. Airbag-dynamic test by human volunteers. It is concluded that the linear acceleration/time concussion tolerance curve may not exist and that only impacts against relatively stiff surfaces producing impulses with short rise times can be critical. The authors hypothesize that if a head impact does not contain a critical HIC interval of less than 0.015 s, it should be considered safe as far as cerebral concussion is concerned.