Hits:

Indexed by:期刊论文

Date of Publication:2013-01-01

Journal:结构与土木工程前沿

Included Journals:CSCD、Scopus

Volume:7

Issue:1

Page Number:50-54

ISSN No.:2095-2430

Abstract:Granular matter possesses impact-absorbing property due to its energy dissipation character. To investigate the impact-absorbing capacity of granular matter, the discrete element method (DEM) is adopted to simulate the impact of a spherical projectile on to a granular bed. The dynamic responses of the projectile are obtained for both thin and thick granular bed. The penetration depth of the projectile and the first impact peak are investigated with different bed thicknesses and impact velocities. Determining a suitable bed thickness is crucial to the buffering effect of granular matter. The first impact peak is independent of bed thickness when the thickness is larger than the critical thickness. ? Higher Education Press and Springer-Verlag Berlin Heidelberg 2013.