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MARC Record
Bibliographic Data
Control Number
311529
Date and Time of Latest Transaction
20150706093542.AM
General Information
150706s |||||||||b ||00|||
Cataloging Source
STII-DOST
Local Call Number
ScienceDirect
Main Entry - Personal Name
Jafarpur, K.
Hashemnia, K.
Aryaei, A.
Title Statement
Experimental and numerical study of ball size effect on restitution coefficient in low velocity impacts by A. Aryaei, K. Hashemnia and K. Jafarpur
Physical Description
pages 1087-1044 computer file; text; 1,094kb
Summary, Etc.
In this article, the Coefficient of Restitution (COR) and Energy Loss Percentage (ELP) of one-dimensional impacts are determined experimentally for different ball sizes using a drop test apparatus. Ball diameters range from 6 to 12 mm, made of steel and aluminum dropped on steel and aluminum sheets. Furthermore, effects of ball sizes on COR and contact time duration are studied numerically. In addition, time variation of displacement of the midpoint of sheet’s top surface and vibration of the ball’s center are investigated. This is done using a finite element model for elasto-plastic collisions. In this work, dynamic and explicit analyses have been carried out by using the LS-DYNA module of ANSYS. The numerical results are validated by the present experimental data. Moreover, the present results are compared with previous works. Results show that COR decreases as balls’ diameters increase. 04 En
Subject Added Entry - Topical Term
neering 04Fi
te element method 04Lo
velocity impact 04Re
itution coefficient DO
Location
STII ScienceDirect NONPRINTS NP 14-15576 1 14-15576 Online/Download 2012-01-12 NO
Physical Location
Department of Science and Technology
Science and Technology Information Institute
ScienceDirect
Digital Copy
Not Available
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