Study on Formative Mechanism of Blasting Crater in Reinforced Concrete under Internal Blast Loading

Fu, Yue; Zhang, Qing Ming; Wang, Han Jun

doi:10.4028/0-87849-415-4.1645

Cited by 1 publication

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“…In the studies of concrete explosion damage, Cofer et al [12] created a finite element model for prestressed concrete beams and studied the effect of blast loads on the structure with two explosion tests. Fu and Zhang [13] studied the damage to the free surface of a reinforced concrete target subjected to an internal explosion load. Li and Hao [14] studied the damage mode for reinforced concrete slabs under aerial initiation conditions, and Zhang and Wang [15] studied the antiexplosion performance of concrete gravity dams under the impact of underwater explosion shocks.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study and Damage Effect Analysis of Concrete Structures under the Combined Loadings of Penetration and Explosion

Geng

Lü

Shi

et al. 2020

Shock and Vibration

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The penetration-explosion warhead is one of the most effective weapons for use against concrete structures. In order to study the phenomena and results for concrete damage caused by the combined effects of penetration and explosion, field experiments were performed on damaged concrete targets with different penetration speeds and explosive charges. The damage to the targets was analyzed, the causes were determined, and prediction methodologies were developed. Dimensional analysis was used to fit experimental results, a formula for calculating the damage depth and volume was proposed, and the dependence of the damage depth and volume on the aspect ratio of the explosive (or charge) and the kinetic energy of bullet penetration were determined. For a given projectile size and quantity of explosives, the damage depth and volume of the concrete target increase with the increasing projectile impact coefficient, but this trend gradually decreases. This observation can also provide a reference for the optimal design of penetration-explosion warheads, exhibiting the desired performance-price ratio.

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