棒を粉体層へ挿入する場合の考察
-錘を所定の高さから落下させる場合-
1986 年 14 巻 3 号 p. 136-139
詳細
1986 年 14 巻 3 号 p. 136-139
The penetration depth of a rod perpendicular to a surface of powder mass was measured by Yuasa et al. as a function of impulse of falling weight on top of the rod for beads of styrene resin and glass. Regarding to the measurements, the author derived a theoretical equation relating the potential energy of the rod and the friction of the powder. The equation shows that the penetration depth increases with increasing falling height and falling weight. The theoretical result seems to agree with the experimental results.
