High velocity impact of metal sphere on thin metallic plate using smooth particle hydrodynamics (SPH) method

doi:10.1007/s11709-012-0160-z

Front Struc Civil Eng

2012, Vol. 6

Issue (2) : 101-110 https://doi.org/10.1007/s11709-012-0160-z

RESEARCH ARTICLE

High velocity impact of metal sphere on thin metallic plate using smooth particle hydrodynamics (SPH) method

Hossein ASADI KALAMEH(

), Arash KARAMALI, Cosmin ANITESCU, Timon RABCZUK

Institute of Structural Mechanics, Bauhaus-University Weimar, Weimar 99423, Germany

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Abstract

The modeling of high velocity impact is an important topic in impact engineering. Due to various constraints, experimental data are extremely limited. Therefore, detailed numerical simulation can be considered as a desirable alternative. However, the physical processes involved in the impact are very sophisticated; hence a practical and complete reproduction of the phenomena involves complicated numerical models. In this paper, we present a smoothed particle hydrodynamics (SPH) method to model two-dimensional impact of metal sphere on thin metallic plate. The simulations are applied to different materials (Aluminum, Lead and Steel); however the target and projectile are formed of similar metals. A wide range of velocities (300, 1000, 2000, and 3100 m/s) are considered in this study. The goal is to study the most sensitive input parameters (impact velocity and plate thickness) on the longitudinal extension of the projectile, penetration depth and damage crater.

Keywords smoothed particle hydrodynamics high velocity impact sensitivity analysis

Corresponding Author(s): KALAMEH Hossein ASADI,Email:asadi.hosein@gmail.com

Issue Date: 05 June 2012

Cite this article:

Hossein ASADI KALAMEH,Arash KARAMALI,Cosmin ANITESCU, et al. High velocity impact of metal sphere on thin metallic plate using smooth particle hydrodynamics (SPH) method[J]. Front Struc Civil Eng, 2012, 6(2): 101-110.

URL:

https://academic.hep.com.cn/fsce/EN/10.1007/s11709-012-0160-z
https://academic.hep.com.cn/fsce/EN/Y2012/V6/I2/101

Fig.1 Spline kernel acting on its compact support

Fig.2 Particles initial placement

Fig.3 Modeling failure

Tab.1 Results for AL-AL impact, 8 μs after impact

Tab.2 Results for Lead-Lead impact, 8 μs after impact

Tab.3 Results for Steel-Steel impact, 8 μs after impact

Fig.4 Spatial variation in direction for AL-AL impact at 2 μs after impact

Fig.5 Spatial variation in direction for AL-AL impact at 4 μs after impact

Fig.6 Spatial variation in direction for AL-AL impact at 6 μs after impact

Fig.7 Spatial variation in direction for AL-AL impact at 8 μs after impact

Fig.8 Spatial variation in direction for AL-AL impact at 2, 4, 6 and 8 μs after impact

Fig.9 Velocity variation in direction for AL-AL impact for 2 μs after impact

Fig.10 Velocity variation in direction for AL-AL impact for 4 μs after impact

Fig.11 Velocity variation in direction for AL-AL impact for 6 μs after impact

Fig.12 Velocity variation in direction for AL-AL impact for 8 μs after impact

Fig.13 Velocity of 300 m/s

Fig.14 Velocity of 1000 m/s

Fig.15 Velocity of 2000 m/s

Fig.16 Velocity of 3100 m/s

Fig.17 Geometry and the initial particle placement for Al-Al impact

Fig.18 Upper half of the configuration obtained by AL-AL impact, at a time 8 μs after impact

Fig.19 Upper half of the configuration obtained by AL-AL impact, at a time 8 μs after impact using SPH technique used in this paper

Tab.4 Results obtained using different methods

Tab.5 Elasticity indices for the input variables initial velocity and = wall thickness and output variables = longitudinal extension, = penetration, and = crater diameter

Tab.6 Percentage contribution to the variation in the outputs = longitudinal extension, = penetration, and = crater diameter for the input variables initial velocity and = wall thickness

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