A comparative experimental study for dry and wet collisions
10.15660/AUOFMTE.2021-1.3580
F-C Ciornei, S Alaci, P Bulai, I-C Romanu
florina.ciornei@usm.ro
Volume XXX, 2021/1
The collision between polyurethane prismatic foam and a dropping steel ball is investigated experimentally. Because the foam presents large deformations, an analytical model is not available. The impact is studied on a test rig from laboratory, for dry foam and for the mineral oil wetted foam. The post impact velocity is found measuring the flight time and the coefficient of restitution and lost energy are estimated. For the dry impact case the damping effect is smaller than for the case of oil-wetted target.
ISSN 1583-0691, CNCSIS "Clasa B+"