Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 08, 2016 - October 10, 2016
High speed penetration experiments have been practiced in many fields, and impact experiments were performed using the powder gun within a velocity of 150-510 m/s. Packing density of sand is varied several kinds. Impact and penetration speed of a projectile were measured by coil method that is contactless. The behavior of projectile changed at transition speed and the acceleration of projectile was expressed two equations depending on the speed region. In this research, calculateing coefficient related to forces to act projectile was conducted, and try to make clear forces of projectile during high-speed penetration in sand.
