On the influence of constitutive relation in projectile impact of steel plates

Dey, Sumita; Børvik, Tore; Hopperstad, Odd Sture; Langseth, Magnus

doi:10.1016/j.ijimpeng.2005.10.003

Cited by 109 publications

(42 citation statements)

References 24 publications

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“…The Johnson-Cook (JC) model is used to describe the effect of the strain hardening, strain-rate ( ε& ) hardening and temperature softening on the stress σ [27,28]:…”

Section: Numerical Simulationsmentioning

confidence: 99%

The use of hat-shaped specimens to study the high strain rate shear behaviour of Ti–6Al–4V

Peirs

Verleysen

Degrieck

et al. 2010

International Journal of Impact Engineering

121

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“…The Johnson-Cook (JC) model is used to describe the effect of the strain hardening, strain-rate ( ε& ) hardening and temperature softening on the stress σ [27,28]:…”

Section: Numerical Simulationsmentioning

confidence: 99%

The use of hat-shaped specimens to study the high strain rate shear behaviour of Ti–6Al–4V

Peirs

Verleysen

Degrieck

et al. 2010

International Journal of Impact Engineering

121

View full text Add to dashboard Cite

“…Different effects of the filled media on the pipes subjected to impact loads indicate that there appears to be a lack of data on experiments involving fluid-structure interactions in pipeline systems, which might be useful in clarifying the underlying mechanics of the impact event. Currently, impact analyses have been typically done by numerical simulation in some fields, like Dey S. et al (2005), Kurtaran H. et al (2003), Knight Jr NF et al (2000), Motta A.A. (2003), Sanchez-Galvez V. et al (2005). A non-linear finite element code of LS-DYNA was used to follow the experimental results and the ballistic limits of target materials were investigated.…”

Section: Introductionmentioning

confidence: 99%

Dynamic responses and damages of water-filled cylindrical shell subjected to explosion impact laterally

Gao

Long

et al. 2014

Lat. Am. j. solids struct.

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An account is given of some principal observations made from a series of experiments in which metal cylindrical shells were subjected to lateral explosion impact by different TNT charge mass and stand-off distance. These cylindrical shells were filled with water in order to identify the main effects produced by the fluid-structure interaction. In comparison, the explosion impact experiments of the empty cylindrical shells were also carried out. The effects of TNT charge mass, stand-off distance, cylindrical shell wall thickness and filled fluid (water) on perforation and deformation of metal cylindrical shells were discussed, which indicated that water increased the wall strength of the cylindrical shells under explosion impact loading, and the buckling deformation and perforation of the cylindrical shell was significantly influenced by the presence of the water; blast-resistant property of the tube under explosive impact loading of 200g TNT charge was much excellent; deformation and damage of empty cylindrical shell were more sensitive to stand-off distance changed. ALE finite element method was employed to simulate the deformations and damages of empty and water-filled cylindrical shells under explosion impact loading. The experimental and computational results are in agreement, showing the validity of the computational scheme in complex fluid-structure interaction problems involving metal materials subjected to explosion impact. The results show that internal pressure of water will increase when subjecting to impact loading, the anti-blast ability of tube structure is significantly enhanced.

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“…p  is the equiva- In the fracture analysis, J-C fracture model [Dey et al, 2007] is used. The effective fracture strain is assumed to be the function of strain rate, temperature and pressure in the form …”

Section: Materials Model For Ofhc and #45 Steelmentioning

confidence: 99%

Numerical and Experimental Study on the Formation and Dispersion Patterns of Multiple Explosively Formed Penetrators

Liu

Long

et al. 2017

Lat. Am. j. solids struct.

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Three-dimensional numerical simulations and experiments were performed to examine the formation and spatial dispersion patterns of integral multiple explosively formed penetrators (MEFP) warhead with seven hemispherical liners. Numerical results had successfully described the formation process and distribution pattern of MEFP. A group of penetrators consisting of a central penetrator surrounded by 6 penetrators is formed during the formation process of MEFP and moves in the direction of aiming position. The maximum divergence angle of the surrounding penetrator group was 7.8°, and the damage area could reach 0.16 m 2 at 1.2 m. The laws of perforation dispersion patterns of MEFP were also obtained through a nonlinear fitting of the perforation information on the target at different standoffs. The terminal effects of the MEFP warhead were performed on three #45 steel targets with a dimension of 160cm  160cm  1.5cm at various standoffs (60, 80, and 120 cm). The simulation results were validated through penetration experiments at different standoffs. It has shown excellent agreement between simulation and experiment results.

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On the influence of constitutive relation in projectile impact of steel plates

Cited by 109 publications

References 24 publications

The use of hat-shaped specimens to study the high strain rate shear behaviour of Ti–6Al–4V

The use of hat-shaped specimens to study the high strain rate shear behaviour of Ti–6Al–4V

Dynamic responses and damages of water-filled cylindrical shell subjected to explosion impact laterally

Numerical and Experimental Study on the Formation and Dispersion Patterns of Multiple Explosively Formed Penetrators

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