title: High-speed impact test using an inertial mass and an optical interferometer.
abstract: A high-speed impact testing method for evaluating mechanical properties of materials is proposed using an inertial mass and a dual beat-frequencies laser Doppler interferometer (DB-LDI). In this method, an inertial mass levitated using an aerostatic linear bearing is made to collide with the material being tested at a high initial velocity. During the collision, the velocity of the mass, which is even higher than the critical velocity (±0.56 m/s) defined by the frequency difference of the Zeeman laser, is accurately measured using the DB-LDI. The position, acceleration, and impact force of the mass are calculated from the measured velocity. Using the proposed method, the mechanical properties of a visco-elastic material under a high-speed impact loading condition can be accurately evaluated.
authors.affiliation: School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan. k.billow@gmail.com
authors.forename: T
authors.initials: T
authors.lastname: Jin
authors.forename: K
authors.initials: K
authors.lastname: Watanabe
authors.forename: I A
authors.initials: IA
authors.lastname: Prayogi
authors.forename: A
authors.initials: A
authors.lastname: Takita
authors.forename: S
authors.initials: S
authors.lastname: Mitatha
authors.forename: M
authors.initials: M
authors.lastname: Djamal
authors.forename: H Z
authors.initials: HZ
authors.lastname: Jia
authors.forename: W M
authors.initials: WM
authors.lastname: Hou
authors.forename: Y
authors.initials: Y
authors.lastname: Fujii