509 外部衝撃の入力時間に着目した脳挫傷のメカニズムについて(S10-2 衝突安全と生体工学(1),S10 衝突安全と生体工学)

概要

論文の詳細を見る
The mechanism of coup contusion and contrecoup contusion are studied with basic impact experiment and FEM analysis. The time taken until the deflection of the shell reached opposite side was close to the natural period of the water filled container and the frequency of fluctuation of internal pressure was equal to the natural frequency of object. The three-dimensional finite element human head model was made with tetrahedron solid elements from MRI data are used. Some parameters of the impact loading for constant impulse and constant energy shocks of variable force duration are prepared, and intracranial pressure of the impact side and the opposite side of the impact are simulated. The results, when duration is short, high frequency appears, too. And, when duration is long, low frequency appears only.
社団法人日本機械学会の論文
2006-09-15