Numerical modeling of the destruction of steel plates with a gradient substrate

Orlov, M. Yu.; Glazyrin, V. P.; Orlov, Yu. N.

doi:10.1063/1.5007591

Cited by 8 publications

(3 citation statements)

References 4 publications

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“…A cross-sectional view of the ice block obtained using computer code IMPACT is shown in Figure 1. 25 A straight circular cylinder (5 × 5 mm) and a metal ball (the diameter is 5.74 mm) weighing 0.78 g were used as penetrators. The material of penetrators was ShKh-15 steel.…”

Section: The Deep Penetration Of Compact Penetrators Into the Ice Blockmentioning

confidence: 99%

Deep penetration of low velocity metal penetrators into ice

Orlov

Orlova

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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The paper summarizes the results of research of the destruction of an ice block with cylindrical and spherical penetrators at low velocity (≤325 m/s). The behaviour of ice at high strain rates is described by an elastic–plastic model of continuum mechanics. Numerical modelling of penetration is performed with IMPACT computer code. Algorithms of splitting nodes and destroying elements in a Lagrangian numerical method were modified to solve problems of penetration and perforation. The fracturing is described by a deterministic fracture model. Crack paths are examined; the damage is predicted and compared with existing experimental results. It was found that in the subsonic range of initial velocities the penetration time did not exceed 0.3 ms. Examination of the penetrators’ shapes showed that they were not plastic deformed.

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Section: The Deep Penetration Of Compact Penetrators Into the Ice Blockmentioning

confidence: 99%

Deep penetration of low velocity metal penetrators into ice

Orlov

Orlova

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…The two-dimensional numerical simulation model was developed using a non-commercial program package IMPACT.2D. 31 A set of computational experiments contained eight cases. In each computational case the target was different (see Figure 2).…”

Section: Numerical Research On the Perforation Problem Of Metal Plate...mentioning

confidence: 99%

Numerical simulation of behavior of multi-layered metal targets impacted by high-velocity striker

Orlov,

Orlova,

Fazylov

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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The results of numerical simulation of perforation of monolithic and multi-layered targets are presented. The objects of study were monolithic, two-layer, three-layer and air gap targets made of steel 3. The influence of the placement of an additional layer on impact resistance in high-velocity impact (initial velocity was more than the ballistic limit of all targets) was investigated. The behavior of materials was described using a phenomenological macroscopic model of continuum mechanics. A modified Lagrangian method was used for numerical simulation of the perforation process. Test calculations were performed before numerical research. Good agreement on penetration depth of an ogival striker into a semi-infinite metal target was obtained. Numerical simulation found that impact resistance of the triple-layered target was higher than that of the double-layered target and monolithic targets. Post-perforation analysis showed the targets were completely perforated and the striker’s tip was slightly eroded or blunted. Duration of perforation of all targets and damage to their materials were approximately the same, but permanent deformation of additional layers was greater with a triple-layered target. This finding can be explained by a pinching effect of additional layers acting on the striker and decelerating it.

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“…At the same time, for a number of applications, it is necessary to develop functionally graded materials (FGM) with a continuous or discrete-continuous change in properties. In particular, the development of FGM is necessary when combining materials with sharply differing values of physicochemical parameters [3,4], for example, in compounds of metals and ceramics. Compacting of ceramic powders with the use of dynamic _____________ processes is widely studied from the point of view of manufacturing ceramics with unique properties and microstructures [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

The shock wave compaction of ceramic powders

2019

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Joint theoretical and experimental investigations have allowed to realize an approach with use of mathematical and physical modeling of processes of a shock wave compaction of ceramic powders. The aim of this study was to obtain a durable low-porosity compact sample. The explosive compaction technology is used in this problem because ceramic powders such as boron carbide and aluminum oxide is an extremely hard and refractory material. Therefore, its compaction by traditional methods requires special equipment and considerable expenses. In order to better understand the influence of the loading conditions and, in particular, to study the effect of detonation velocity, explosive thickness and explosion pressure on the properties of the final sample, the problem of compaction of the powder in an axisymmetric case using the conditions of the above experiments have been numerically solved. Thus, using the technology of explosive compaction, compact samples of boron carbide and aluminum oxide are obtained. On the basis of experimental and numerical studies of shock waves propagation, the optimum scheme and parameters of dynamic compaction of boron carbide and aluminum oxide are determined in order to maximize the density and the conservation of the samples after dynamic loading.

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Numerical modeling of the destruction of steel plates with a gradient substrate

Cited by 8 publications

References 4 publications

Deep penetration of low velocity metal penetrators into ice

Deep penetration of low velocity metal penetrators into ice

Numerical simulation of behavior of multi-layered metal targets impacted by high-velocity striker

The shock wave compaction of ceramic powders

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