✦ LIBER ✦

Contact force calculations with a simple spring-mass model for hard impact: A case study using polystyrene aggregate concrete

✍ Scribed by P.H. Bischoff; S.H. Perry; J. Eibl

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 492 KB
Volume: 9
Category: Article
ISSN: 0734-743X
DOI: 10.1016/0734-743x(90)90005-g

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✦ Synopsis

A simple spring-mass model is used to calculate the contact force-time relationship during hard impact. The non-linear spring stiffness in the contact zone is estimated from static penetration resistance tests, and the differential equation of equilibrium is solved numerically for an initial impact velocity. The model is validated with experimental results for polystyrene aggregate concrete at relatively low impact velocities (0-8 m/s). Penetration depths, also, can be obtained with this method.