Hard projectile impact on layered SFRHSC composite target

Wu, Hao; Fang, Qin; Ziming, Gong; Peng, Yun

doi:10.1016/j.ijimpeng.2015.05.013

Cited by 16 publications

(8 citation statements)

References 16 publications

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“…This will cause that the projectile axial force becomes a nonzero value (maybe it is minus), which is not consistent with Equation (32b). Therefore, it is noted that from Equations ( 36) and (38), there may exist relatively large errors around ballistic limit.…”

Section: Residual Velocitymentioning

confidence: 99%

Study on the perforation process of concrete targets against the impact by nondeforming projectiles

Wang

et al. 2022

Structural Concrete

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The perforation of concrete‐like material targets against impact by nondeforming projectiles is always the research focus in engineering protective domain. In the present paper, a new punching plug model is proposed based on the similar features with punching shear in concrete slabs, utilizing the failure criterion of modified Mohr‐Coulomb. Semi‐empirical equations corresponding to ballistic limit, residual velocity, punching plug thickness are derived, where residual velocity is renewedly identified considering the effect of punching plug resistance. Eventually, the proposed punching plug model is validated and discussed by comparisons with perforation experiments.

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Section: Residual Velocitymentioning

confidence: 99%

Study on the perforation process of concrete targets against the impact by nondeforming projectiles

Wang

et al. 2022

Structural Concrete

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“…[7,9]). In addition to increasing the ballistic limit (for a given barrier thickness), fibres were found to reduce the front (impacted) face damage of 20-35 cm thick, 1 m diameter RC specimens [10]. Other researchers pointed out that application of fibres increased also the capability to bear multiple hits [11,12].…”

Section: Introductionmentioning

confidence: 98%

High-performance concrete engineered for protective barriers

Dancygier

2017

Phil. Trans. R. Soc. A.

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This paper reviews the effects of high-performance concrete mix ingredients on its resistance to impact of non-deforming projectiles, and on the resistance of layered barriers, engineered based on these findings. First, the reported effects of the aggregate types and sizes and the application of steel fibres, which were observed experimentally, are presented, considering resistance parameters that include the impact energy at the ballistic limit, the extent of the damaged areas at the impacted (front) and rear faces and the overall damage. These findings indicate that a protective barrier may be engineered to have layers that utilize these effects to produce a better performance under impact. Results from reported experiments of double-layered specimens, which examined the effects of the aggregate size and application of fibres, confirm this idea to a certain extent. They lead to conclusions regarding the importance of fibres in mitigating the damage, the use of large aggregates in a thicker front layer and their associated effect on increasing the damage at the front, impacted face. A 'resistance index' is proposed to quantify the resistance in a comprehensive way and the experimental results have been re-evaluated in view of this parameter.This article is part of the themed issue 'Experimental testing and modelling of brittle materials at high strain rates'.

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“…In order to increase the ballistic resistance of a concrete barrier (panel, slab or wall), a number of techniques were introduced, e.g., [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. Among these techniques are the use of high strength concrete [1,2] and/or strengthening the barrier either with steel plates, e.g.…”

Section: Introductionmentioning

confidence: 99%

Perforation Limit of Steel-Concrete-Steel Barriers Resisting Impact

Abdel‐Kader¹

2022

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Introducing a numerical modelling and formulae to predict ballistic limit (perforation velocity or perforation limit) of concrete barriers strengthened with steel plates and subjected to rigid projectile impact was the aim of this study. A formula to predict the perforation limit of front steel-concrete (S-C) target is proposed. A formula to predict the perforation limit of steel-concrete-steel (S-C-S) target is also proposed which reflects the significant effect of the rear steel liner. The results, being in good agreement with the experiment, have showed that the interaction between the concrete panel and the front steel liner (even with full bond assumption) has little effect on the perforation limit of the S-C target. In design of protective structures and regarding the percentage increase in perforation limit over reinforcement ratio of steel plates, the concrete-rear steel (C-S) target gives better result from the economic perspective than the S-C-S target. It is recommended to modify the power of compressive strength of concrete f c in the CEA-EDF perforation formula for concrete to avoid over-prediction of perforation limit when using high strength concrete. This modification may extend to other perforation formulae for concrete.

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Hard projectile impact on layered SFRHSC composite target

Cited by 16 publications

References 16 publications

Study on the perforation process of concrete targets against the impact by nondeforming projectiles

Study on the perforation process of concrete targets against the impact by nondeforming projectiles

High-performance concrete engineered for protective barriers

Perforation Limit of Steel-Concrete-Steel Barriers Resisting Impact

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