Engineering Analytical Model of Ogive-nose Steel Projectiles VerticallyPenetrating Reinforced Concrete Target

LIU Zhi-lin;SUN Wei-wei;WANG Xiao-ming;LI Wen-bin

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    Published By: Journal Of Ballistics

    CN 32-1343/TJ

Journal Of Ballistics ›› 2015, Vol. 27 ›› Issue (3) : 84.

Engineering Analytical Model of Ogive-nose Steel Projectiles VerticallyPenetrating Reinforced Concrete Target

  • LIU Zhi-lin, SUN Wei-wei, WANG Xiao-ming, LI Wen-bin
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Abstract

To study the resistance of steel in reinforced concrete while the projectile penetrating the target,the macroscopic and microscopic analysis of reinforced concrete block taken from the test was carried out.Based on the spherical cavity expansion model,the resistance of the projectile due to direct impact with reinforced was considered,and the projectile penetrating reinforced concrete engineering analytical model was established.The effect of steel bar on projectile was analyzed when the contact position located at the intersection node,the grid center point,the midpoint of a single reinforced and any other location points.The study shows that the steel bar in reinforced concrete not only affects the resistance of concrete but also deduces the penetration capability of projectile impacting steel bar.Under specific mesh size conditions,the resistance effect of reinforced on projectile becomes more obvious with the increase of rein forcement ratio,and the influence of bar diameter is less than that of the interlayer spacing of the steel mesh when reinforcement ratio is invariant.

Key words

penetration / steel bar / reinforced concrete / cavity expansion / electron microscopy analysis

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LIU Zhi-lin, SUN Wei-wei, WANG Xiao-ming, LI Wen-bin. Engineering Analytical Model of Ogive-nose Steel Projectiles VerticallyPenetrating Reinforced Concrete Target. Journal Of Ballistics. 2015, 27(3): 84

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