Cylindrical Cavity Expansion Penetration Model for Concrete Targets with Shear Dilatancy
Publication: Journal of Engineering Mechanics
Volume 139, Issue 9
Abstract
A dynamic cylindrical cavity expansion model is presented herein to predict the penetration of concrete targets subjected to impact by conical-nosed projectiles at normal incidence. It is assumed that cavity expansion in an infinite concrete target produces three response regions: elastic, cracked, and comminuted regions. To allow for compressibility or dilatancy of the material in the comminuted region, a dilatant-kinematic relation is introduced in this paper. A procedure is first given to calculate the radial stress at the cavity surface, and then, a numerical method is used to calculate the results of penetration with friction being taken into account. It transpires that the present model predictions are in reasonable agreement with the available experimental data.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 139 • Issue 9 • September 2013
Pages: 1260 - 1267
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Mar 12, 2011
Accepted: Sep 12, 2012
Published online: Sep 15, 2012
Published in print: Sep 1, 2013
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