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EN
During ongoing conflicts around the world, some of the most dangerous threats are rocket-propelled grenades. They are light, easy to use and cheap, and their penetration reaches 900 mm of armoured RHA steel. Therefore, in many experimental and numerical laboratories there are researches of different, in aspect of shape, dimensions and used material, types of rod armours protecting against such a threat carried out. This kind of research must be confirmed in the last part of design by appropriate field tests. However, at the beginning of the design process, it is important to find a fast method of testing the developed solutions in a manner, which allows us to observe and measure as many process parameters as possible. One of such tests is research with the use of simplified models built in an appropriate scale. Small dimensions and simple construction result in the fact that the cost of manufacturing of models is much lower, and time is shorter. Tests on the simplified models are also possible to be carried out in laboratory conditions, what reduces the costs and makes the measurements of physical properties easier. The article describes experimental investigations of the impact of a simplified missile with a shape charge jet head model into a thick plate and steel rods. The construction of a missile, the used equipment and apparatus as well as the proceedings of the experiment are presented. The paper provides information about the structure of FE model and both initial and boundary conditions of the examined system. The results of numerical analysis are presented and compared with the results from experimental tests.
PL
Opisano przeprowadzone analizy numeryczne uderzenia pocisku z głowicą kumulacyjną w pancerz prętowy. Na podstawie wyników symulacji dokonano porównania skuteczności wybranego rodzaju pancerza ustawionego w dwóch pozycjach.
EN
The article contains a description of the realized numerical analysis of the missile impact with accumulation head into rod armour. Based on the results were compared effectiveness of the choosen type of armour placed in two positions.
PL
W artykule przedstawiono wyniki symulacji uderzenia pocisku PG-7G z głowicą kumulacyjną, w pancerz prętowy, w szerokim zakresie kątów uderzenia. Przedstawiono deformacje i zniszczenia najważniejszych elementów układu, jakimi są wkładka kumulacyjna i materiał wybuchowy. Oceniono możliwości utworzenia się strumienia kumulacyjnego w wyniku zadziałania uszkodzonego układu.
EN
The aim of this paper is numerical analysis of PG -7G grenade deformation process as a result of contact with rod armow at great range incident angles. Deformation and the process of destruction of important parts of the grenade are presented. The probability level of shape charge jet formation on the basis of liner and explosives deformation was estimated.
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