EPJ Web of Conferences
Volume 94, 2015DYMAT 2015 - 11th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
|Number of page(s)||3|
|Published online||07 September 2015|
Estimation of the restitution coefficient by strain measurement
1 Meijo University, Department of Vehicle and Mechanical Engineering, 1-501 Shiogamaguchi, Tempaku-ku, Nagoya 468-8502, Japan
2 Meijo University, Graduate School of Science and Technology, 1-501 Shiogamaguchi, Tempaku-ku, Nagoya 468-8502, Japan
a Corresponding author: firstname.lastname@example.org
Published online: 7 September 2015
In order to clarify the collision phenomenon of the traffic machine in motion, such as automobile and aircraft, it is necessary to examine not only the deformation and the behavior of composed structural member but also the dynamic characteristic of friction coefficient and restitution coefficient in the collided contact surface. In this study, the restitution coefficient was estimated from the strain waveform measured by collision test using the Air Gun. The velocity and deformation dependence of the restitution coefficient was examined by carrying out the collision test at the different speed. As a result, in the metal test piece, restitution coefficient decreased by the plastic deformation with the increasing of the collision speed, and the velocity dependence was confirmed.
© Owned by the authors, published by EDP Sciences, 2015
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