Dimensionless formulae for penetration depth of concrete target impacted by a non-deformable projectile

Li, Qingming; Chen, X W

doi:10.1016/s0734-743x(02)00037-4

Cited by 256 publications

(197 citation statements)

References 21 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%

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%

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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“…(16) or Eqn. (17), another twenty sets of previous sub-scale experimental data (Set 7− Set 26) for the DOP 14,25 have also been calculated. Denote the relative-error between the calculated results of the new DOP formula P and the experimental data P e by R =(P − P e )/P e .…”

Section: Numerical Resultsmentioning

confidence: 99%

“…Young 13 proposed an empirical DOP model based on a number of experimental data for the penetration of full-scale projectiles at sub ordnance and ordnance velocities into quasi-brittle materials such as concrete, rock and soil; Forrestal and his colleagues [14][15][16] also presented an semi-empirical DOP formula for an ogivalnosed projectile penetrating into concrete targets, based on the spherical cavity-expansion theory and their experimental data of sub-scale projectiles. Li & Chen 17 developed again a semi-empirical DOP formula available for the penetration of sub-scale projectiles by using dimensional analysis, in which an impact function and a geometry function are introduced for the first time. In addition, there are still some other empirical DOP models 2,5,18 .…”

Section: Introductionmentioning

confidence: 99%

Similarity Analysis of Projectile Penetration into Concrete

Huang

Tong

et al. 2018

Def. Sc. Jl.

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A dimensionless model for the depth of penetration (DOP) of a projectile penetrating into a concrete target, based on the similarity theory involving intermediate asymptotics, complete similarity, and incomplete similarity is presented. The calculated numerical results are in good agreement with previous experimental data, including two sets of full-scale and twenty-four sets of sub-scale penetration of non-deformable projectiles into concrete targets. Moreover, compared with several empirical and semi-empirical DOP models, the new model is applicable within a relatively broader range, including the penetration of both sub-scale and full-scale projectiles. For the limitations of the validity, dimensionless parameters Π 3 =ϕ t /ϕ larger than 12, Π 4 = (ϕ 3 f c )/(Mv 0 2 ) smaller than 0.1, and the initial impact velocity of the projectile less than about 900 m/s to 1000 m/s are necessary for the model.

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“…The problem statement is given in Section 2. The general model of projectile trajectory under non-axisymmetrical condition is applied to study the curvilinear motion and instability of 3 projectiles in deep penetration in Section 3. The general features of the curvilinear motion and instability of projectile trajectory in soil target are discussed in Section 4, followed by conclusions in Section 5.…”

Section: Waterways Experiments Station (Wes) To Develop 2-d (Penco2d) mentioning

confidence: 99%

“…2 soil media [1][2][3][4][5][6]. A projectile may hit a target with oblique, pitch and/or yaw angles, as reported in experimental and numerical studies for their effects on penetration process [7][8][9][10][11][12], which introduced non-axisymmetrical resistance on the surface of the projectile and led to the curved (or curvilinear) projectile trajectory.…”

mentioning

confidence: 99%

Dimensionless formulae for penetration depth of concrete target impacted by a non-deformable projectile

Cited by 256 publications

References 21 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

Similarity Analysis of Projectile Penetration into Concrete

Trajectory instability and convergence of the curvilinear motion of a hard projectile in deep penetration

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