Resistance of high-strength concrete to projectile impact

Zhang, M.H.; Shim, V.P.W.; Lu, Gang; Chew, CH

doi:10.1016/j.ijimpeng.2004.04.009

Cited by 247 publications

(148 citation statements)

References 7 publications

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“…7), where both of materials have different compressive strength (see Table 1). From the result indicates that strength of concrete play an important role for penetration depth of concrete beside impact velocity, where the result agrees with previous researchers [13,17,[20][21][22]. …”

Section: Penetration Valuessupporting

confidence: 91%

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An investigation of Crater Diameter on Plain Slab Foamed Concrete Rice Husk Ash (FCRHA) Exposed to Low Impact Loading

et al. 2017

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Abstract. As sustainable material building and construction, the foamed concrete (FC) in this investigation was modified by adding the Rice Husk Ash (RHA) as sand replacement to increase its strength. Furthermore, this modification material (is called FCRHA) treated on impact loading. This investigation was motivated when the plain slab of FCRHA subjected to small impactor, then the nose impactor over all would penetrate into slab target due to porosity of FCRHA. The experimental produced plain slabs FCRHA and FC (as a control) with 1400 kg/m 3 and 1600 Kg/m 3 of densities. In impact test all plain slabs exposed by 40 mm steel blunt nose impactor with various impact velocities. The result showed the crater which produced by impact loading was not found spalling, scabbing, radial crack and widely cratering. This local damage occurred when porosity of FCRHA took over the impact loading. The nose impactor over all considered have been successful penetrated into slab of FCRHA and FC. Therefore, the diameter of crater equals to diameter of impactor. With this certainty, the prediction penetration depth on plain slab FCRHA (also FC) can be determined in future investigation. In addition, the penetration of impactor on FCRHA with low impact velocity give the same impression on penetration impactor with high impact velocity on FC.

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Section: Penetration Valuessupporting

confidence: 91%

“…Local impact occurred in this investigation was crater without radial crack, spalling, scabbing nor wide cratering [11,17,18] on FC and FCRHA slab target (see Fig. 2).…”

Section: Local Damage Behaviourmentioning

confidence: 76%

An investigation of Crater Diameter on Plain Slab Foamed Concrete Rice Husk Ash (FCRHA) Exposed to Low Impact Loading

et al. 2017

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“…The increased sensitivity of the polypropylene fibers at high strain rate loading conditions was believed to be related to a more viscoelastic character of the polypropylene fibers than steel or carbon fibers. Zhang et al (2005) and Mohammadi et al (2009) found better crack resistance properties and enhanced energy absorbing capacity of HFRC composite structures against impact. On the basis of drop weight tests performed on steel-polypropylene HFRC, Komlos et al (1995) and Song et al (2005) reported positive role of polypropylene fibers in improving the impact resistance of HFRC.…”

Section: Introductionmentioning

confidence: 96%

Strain Rate Dependent Behavior and Modeling for Compression Response of Hybrid Fiber Reinforced Concrete

Ibrahim

Almusallam

Al-Salloum

et al. 2016

Lat. Am. j. solids struct.

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This paper investigates the stress-strain characteristics of Hybrid fiber reinforced concrete (HFRC) composites under dynamic compression using Split Hopkinson Pressure Bar (SHPB) for strain rates in the range of 25 to 125 s -1 . Three types of fibers -hooked ended steel fibers, monofilament crimped polypropylene fibers and staple Kevlar fibers were used in the production of HFRC composites. The influence of different fibers in HFRC composites on the failure mode, dynamic increase factor (DIF) of strength, toughness and strain are also studied. Degree of fragmentation of HFRC composite specimens increases with increase in the strain rate. Although the use of high percentage of steel fibers leads to the best performance but among the hybrid fiber combinations studied, HFRC composites with relatively higher percentage of steel fibers and smaller percentage of polypropylene and Kevlar fibers seem to reflect the equally good synergistic effects of fibers under dynamic compression. A rate dependent analytical model is proposed for predicting complete stress-strain curves of HFRC composites. The model is based on a comprehensive fiber reinforcing index and complements well with the experimental results.

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“…Referring to the previous literature [2,3,5], the performance evaluation was implemented as indicated in Table 4 and Figure 4.…”

Section: Performance Evaluation Of Impact Resistancementioning

confidence: 99%

“…In other countries, cement-based composite materials were tested using an apparatus through a high-speed projectile crash to evaluate the impact resistance performance when given a direct impact [3,4], on which basis an analysis model was developed and tested [5,6] Hence, this study aims to review the effect of the compressive strength of and fiber mix proportion in mortar and concrete on impact resistance performance under a high-speed crash condition, using an apparatus for testing impact resistance performance by high-speed projectile crash. In addition, considering the thickness of concrete and the crash energy of the high-speed projectile, data on the evaluation of impact resistance performance is collected to be utilized in the future as fundamental data for impact resistance performance design of fiber reinforced cement composite.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Impact Resistance of Steel Fiber and Organic Fiber Reinforced Concrete and Mortar

Kim¹,

Hwang²,

Nam³

et al. 2012

Journal of the Korea Institute of Building Construction

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In this study, the Impact resistance of steel fiber and organic fiber reinforced concrete and mortar was evaluated and the improvement in toughness resulting from an increase in compressive strength and mixing fiber for impact resistance on performance was examined. The types of fiber were steel fiber, PP and PVA, and these were mixed in at 0.1, 0.5 and 1.0 vol.%, respectively. Impact resistance is evaluated with an apparatus for testing impact resistance performance by high-speed projectile crash by gas-pressure. For the experimental conditions, Specimen size was 100×100×20, 30mm (width×height×thickness). Projectile diameter was 7 and 10 mm and impact speed is 350m/s. After impact test, destruction grade, penetration depth, spalling thickness and crater area were evaluated. Through this evaluation, it was found that as compressive strength is increased, penetration is suppressed. In addition, as the mixing ratio of fiber is increased, the spalling thickness and crater area are suppressed. Organic fibers have lower density than the steel fiber, and population number per unit area is bigger. As a result, the improvement of impact resistance is more significant thanks to dispersion and degraded attachment performance.

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Resistance of high-strength concrete to projectile impact

Cited by 247 publications

References 7 publications

An investigation of Crater Diameter on Plain Slab Foamed Concrete Rice Husk Ash (FCRHA) Exposed to Low Impact Loading

An investigation of Crater Diameter on Plain Slab Foamed Concrete Rice Husk Ash (FCRHA) Exposed to Low Impact Loading

Strain Rate Dependent Behavior and Modeling for Compression Response of Hybrid Fiber Reinforced Concrete

Evaluation of Impact Resistance of Steel Fiber and Organic Fiber Reinforced Concrete and Mortar

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