人体ダミー有限要素モデルを用いた野球ボール衝突時の頭部角加速度評価

抄録

In recent years, with the increase in the number of people playing sports, the number of accidents during competitions has been on the rise. Baseball is one of the sports in which players are exposed to shocks, and dead balls to the head can lead to concussions and fatalities. Thus, a human safety evaluation using numerical simulations toward the injury prevention is highly demanding. In this study, a Hybrid III human dummy model and baseball impact analysis were performed to investigate how the ball impact location and angle affect head injuries. Our simulations show that the peak value of the brain injury criteria BrIC and its time profile are strongly affected by the baseball impact angle. In particular, the trend is significant in case of the frontal head-to-baseball impact.