Adaptive smoothed particle hydrodynamics for high strain hydrodynamics with material strength

Liu, Moubin; Liu, G. R.; Lam, K.Y.

doi:10.1007/s00193-005-0002-1

Cited by 71 publications

(47 citation statements)

References 24 publications

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“…The meshfree nature of SPH method remove the difficulties due to large deformations since SPH uses particles rather than mesh as a computational frame to approximate related governing equations. These features of SPH make it fairly attractive in modeling high explosive detonation and explosion, underwater explosion, and hydrodynamics with material strength such as impact and penetrations [25][26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Smoothed particle hydrodynamics modeling of linear shaped charge with jet formation and penetration effects

Feng

Liu

et al. 2013

Computers & Fluids

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a b s t r a c tShaped charge, as a frequently used form of explosive charge for military and industrial applications, can produce powerful metal jet and lead to stronger penetration effects onto targets than normal charges. After the explosion of high explosive (HE) charge, the detonation produced explosive gas can exert tremendous pressure on surrounding metal case and liner with very large deformation and even quick phase-transition. In this paper, the entire process of HE detonation and explosion, explosion-driven metal deformation and jet formation as well as the penetrating effects is modeled using a smoothed particle hydrodynamics (SPH) method. SPH is a Lagrangian, meshfree particle method, and has been widely applied to different areas in engineering and science. A modified scheme for approximating kernel gradient (kernel gradient correction, or KGC) has been used in the SPH simulation to achieve better accuracy and stability. The modified SPH method is first validated with the simulation of a benchmark problem of a TNT slab detonation, which shows accurate pressure profiles. It is then applied to simulating two different computational models of shaped-charge jet with or without charge cases. It is found that for these two models there is no significant discrepancy for the length and velocity of the jet, while the shapes of the jet tip are different. The modified SPH method is also used to investigate the penetrating effects on a steel target plate induced by a linear shaped charge jet. The effectiveness of the SPH model is demonstrated by the good agreement of the computational results with experimental observations and the good energy conservation during the entire process.

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Section: Introductionmentioning

confidence: 99%

Smoothed particle hydrodynamics modeling of linear shaped charge with jet formation and penetration effects

Feng

Liu

et al. 2013

Computers & Fluids

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“…The SPH method was originally invented to solve astrophysical problems in the open space such as binary stars, stellar collisions and motion near black holes. Later, it has been extensively studied and extended to different problems in engineering and sciences, such as multi-phase [22,23] and multi-scale [24] flows, high strain hydrodynamics with material strength [25][26][27][28], explosion and underwater explosion [29][30][31], and many others [32][33][34]. As a comparatively new computational method, SPH combines the advantages of meshfree, Lagrangian and particle methods.…”

Section: Introductionmentioning

confidence: 99%

An improved SPH method for modeling liquid sloshing dynamics

Shao

Liu

et al. 2012

Computers & Structures

207

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“…The SPH results were compared with the result of the other SPH works and experimental data. In this section are presented three test, many employed in the literature [5], [29], [30]. The study examples are high shear in a plate, the impact of a plate against a rigid surface and the penetration of a cylinder through a plate.…”

Section: Numerical Testsmentioning

confidence: 99%

“…This problem has been widely used in the literature [6], [29], [30]. An Armco iron cylinder represented with a plate in two dimensions is traveling at 200 m/s and in impacts on a rigid static surface.…”

Section: Impact Of a Plate Against A Rigid Surfacementioning

confidence: 99%

“…The Figure 6 shows the final deformed shape of the cylinder and its dimension and the Table 3 is the comparison between the SPH simulation made in this work and the made by Gordon R. Johnson [29], Libersky [6] and Liu [30] . From Figure 6 and Table 3 it can be seen a good behaviour of our model compared to previous SPH models presented in the literature.…”

Section: Impact Of a Plate Against A Rigid Surfacementioning

confidence: 99%

See 1 more Smart Citation

Implementation of the Smoothed Particle Hydrodynamics Method to Solve Plastic Deformation in Metals

Patiño¹,

Reyes²,

Garcia³

et al. 2014

Proceedings of 10th World Congress on Computational Mechanics

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Adaptive smoothed particle hydrodynamics for high strain hydrodynamics with material strength

Cited by 71 publications

References 24 publications

Smoothed particle hydrodynamics modeling of linear shaped charge with jet formation and penetration effects

Smoothed particle hydrodynamics modeling of linear shaped charge with jet formation and penetration effects

An improved SPH method for modeling liquid sloshing dynamics

Implementation of the Smoothed Particle Hydrodynamics Method to Solve Plastic Deformation in Metals

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