A Cracked-Comminuted Model for Penetration into Confined Concrete Targets

Ming Zhen; Dian Yi Song; Zhi Gang Jiang

doi:10.4028/www.scientific.net/AMM.357-360.839

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 357-360A Cracked-Comminuted Model for Penetration into...

A Cracked-Comminuted Model for Penetration into Confined Concrete Targets

Abstract:

Confined concrete is superior to the normal concrete in anti-projectile performance. The concrete filled confining tube of relatively small radius would be in cracked-comminuted stage during the penetrating process of projectiles at relatively low velocity. Based on the linear pressure-volumetric strain relationship and the Mohr-Coulomb yield criterion, a dynamic cylindrical cavity expansion model for the penetration into confined concrete targets with lateral elastic confinement is proposed. Numerical results show that the lateral confinement improves cavity stress significantly, and the radius ratio of target to cracked-comminuted interface has little influnce on cavity stress for relatively low cavity expansion velocity.

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Periodical:

Applied Mechanics and Materials (Volumes 357-360)

Pages:

839-843

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.357-360.839

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Online since:

August 2013

Authors:

Ming Zhen, Dian Yi Song, Zhi Gang Jiang

Keywords:

Cavity Expansion, Confined Concrete, Finite Radius, Lateral Confinement, Penetration

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