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Cylindrical Cavity Expansion Penetration Model for Concrete Targets with Shear Dilatancy
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.
Cylindrical Cavity Expansion Penetration Model for Concrete Targets with Shear Dilatancy
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.
Cylindrical Cavity Expansion Penetration Model for Concrete Targets with Shear Dilatancy
Guo, X. J. (author) / He, T. (author) / Wen, H. M. (author)
Journal of Engineering Mechanics ; 139 ; 1260-1267
2012-09-15
82013-01-01 pages
Article (Journal)
Electronic Resource
English
Cylindrical Cavity Expansion Penetration Model for Concrete Targets with Shear Dilatancy
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