Experimental and theoretical investigation of encounter of a group of particles with protecting elements of spacecraft

Зелепугин, С. А.; Konyaev, A. A.; Sidorov, Vladimir N.; Khorev, I. E.; Yakushev, V. K.

doi:10.1134/s0010952508060087

Cited by 4 publications

(4 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previously, the interaction of cylindrical elements with barriers at lower angles o f impact and erosion fracture mechanism making it impossible to consider the interaction of the fra gments with each other and with the barrier was considered in [9,10]. In [11], the authors numerically investigated the interaction of ice projectiles with the barriers made of aluminum alloy and asbotextolite.…”

Section: Computational Resultsmentioning

confidence: 99%

Numerical Simulation of High-Velocity Interaction Elements With Thin-Walled Structures

Герасимов¹,

Пашков²

2016

Proceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016)

View full text Add to dashboard Cite

The process of high-velocity collision of the elements of thin-walled structures with spherical and elongated projectiles, simulating fragments of cosmic bodies, artificial objects, ice particles and damaging elements is considered in three-dimensional Lagrangian formulation. The problem is solved taking into account probabilistic nature of crushing the material of the interacting bodies. Collision proceeds as normal and at an angle to a barrier surface. The approach proposed to solve fragmentation problems enables to reproduce the processes of barriers breaking with high-velocity elements in three-dimensional formulation which is the most complete from the physical point of view. The processes of interaction of the streams of high-velocity elements with thin-walled enclosures at different angles of approach to the latter, as well as the behavior of enclosure fragments and element debris behind the first shell of the construction, are of great practical interest to ensure reliable operation of spacecrafts, aircraft and missile technology. The streams of high-velocity elements may have different physical nature. They may be man-made and natural meteoric particles in space, ice particles in the atmosphere and damaging elements in all media. In this paper we consider processes of plates breaking by clusters of spherical and elongated projectiles and fragmentation pattern, as well as the formation of debris streams in behind-the barrier space.

show abstract

Section: Computational Resultsmentioning

confidence: 99%

Numerical Simulation of High-Velocity Interaction Elements With Thin-Walled Structures

Герасимов¹,

Пашков²

2016

Proceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016)

View full text Add to dashboard Cite

show abstract

“…By now, little attention was given to the problems of impact of a group of bodies with a target and to studying the features of their collective action both experimentally and theoretically [3,4]. This situation is mainly related to the complexity of studying the process of impact of a group of bodies with targets.…”

mentioning

confidence: 97%

“…This situation is mainly related to the complexity of studying the process of impact of a group of bodies with targets. In experiment, it is difficult to realize a controlled projection of a group of bodies with desired distributions of the body velocities in direction and size and of the distances between the bodies over the front and in group depth; it is also difficult to measure the parameters of the bodies on approaching the target and during the interaction with the target [4][5][6]. An adequate numerical simulation calls for three-dimensional calculations that necessitate the use of complex numerical techniques and simultaneous computations [3].…”

mentioning

confidence: 99%

See 1 more Smart Citation

The mechanism of the increase in penetration depth upon impact of a group of low-deformable spherical particles

Zalepugin

Skripnyak

2009

Russ Phys J

View full text Add to dashboard Cite

Divergent compression and rarefaction waves propagating in a target upon impact of a group low-deformable particles were numerically investigated to reveal the physical mechanisms of the increase in penetration depth. An original approach was used where a depression (crater) in a target simulated the result of impact of a previous particle. Repeated reflection of rarefaction waves from the depression wall, their arrival at the impact axis, and subsequent propagation deep in the target has been revealed. It has been supposed that these repeated rarefaction waves produces stage-by-stage local damage to the target material ahead of the particle followed by the formation of a cylindrical crack, and this eventually provides the increase in penetration depth observed in experiment.Keywords: Multiple impact, failure, finite element method.Investigations of the dynamic interaction of deformable solid bodies are limited to studying the impact of a single body with various types of target [1,2]. By now, little attention was given to the problems of impact of a group of bodies with a target and to studying the features of their collective action both experimentally and theoretically [3,4]. This situation is mainly related to the complexity of studying the process of impact of a group of bodies with targets. In experiment, it is difficult to realize a controlled projection of a group of bodies with desired distributions of the body velocities in direction and size and of the distances between the bodies over the front and in group depth; it is also difficult to measure the parameters of the bodies on approaching the target and during the interaction with the target [4-6]. An adequate numerical simulation calls for three-dimensional calculations that necessitate the use of complex numerical techniques and simultaneous computations [3]. At the same time, the collective action of a group of particles of varied size and shape on a target is realized in practice in the majority of high-speed impact events. This can be the secondary impact of a group (flow) of the target fragments that have formed behind the target after the primary impact. A primary impact can also be collective.The investigations performed have shown that the physical and mechanical features of the collective action of a group of particles essentially differ from that those inherent in single-particle impact. Lin and co-workers [5] investigated experimentally the penetration of a group of spherical steel (ShKh-15) particles of diameter d = 5 mm into a duralumin (D16-T) target of thickness h = 15 and 100 mm at an impact velocity of 1400 ± 100 km/s. This velocity can be considered moderate when the effect of the physical mechanisms of compression and heating of the medium in a shock wave is low and the leading role is played by the deformation (strength) processes of shear hardening and softening that occur on cumulative damage and heating in the region of intense plastic strain. Under the given conditions, the particles were deformed only slightly and, as a whole...

show abstract

New light-gas guns for studying high-velocity impact at space velocities

Khristenko¹

2017

AIP Conference Proceedings

View full text Add to dashboard Cite

Experimental and theoretical investigation of encounter of a group of particles with protecting elements of spacecraft

Cited by 4 publications

References 5 publications

Numerical Simulation of High-Velocity Interaction Elements With Thin-Walled Structures

Numerical Simulation of High-Velocity Interaction Elements With Thin-Walled Structures

The mechanism of the increase in penetration depth upon impact of a group of low-deformable spherical particles

New light-gas guns for studying high-velocity impact at space velocities

Contact Info

Product

Resources

About