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Tytuł:
Vehicle armour from requirements to field
Autorzy:
Töyryla, T.
Powiązania:
https://bibliotekanauki.pl/articles/241962.pdf
Data publikacji:
2007
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
armour
ballistic protection
armour development
armour design
armour testing
armour verification
Opis:
From military vehicle industry point of view the process of designing vehicle armour solution from the requirements to the field for any specific customer requirements consists of following steps: selection, optimization, verification, design, manufacturing and fielding. The process is based on the knowledge and database of pre-evaluated solutions and technologies and true understanding of customer needs and expectations. After the selection of the specific customer solution is made, the process is essentially disconnected from the armour development. In the project phase the armour tests are made for solution optimization and verification purposes only.
Źródło:
Journal of KONES; 2007, 14, 1; 375-376
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Add-On Perforated Plates on the Protective Performance of Light-Weight Armour Systems
Autorzy:
Fras, T.
Faderl, N.
Powiązania:
https://bibliotekanauki.pl/articles/403600.pdf
Data publikacji:
2018
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
mechanics
perforated add-on armour
armour-piercing (AP) projectile
Opis:
The presented experimental investigation, aimed at verification of defeat mechanisms against small-calibre projectiles, provided by 4-mm-thick perforated plates with different material- and geometrical properties, was performed. A regular pattern of punched holes in steel plates increases the possibility of asymmetrical contact between the plate and projectiles which may cause threat destabilization, rotation or fragmentation depending on the impact position. Three tested armour configurations comprise the super-bainitic high-hardness Pavise™ SBS 600P armour steel plates perforated by elongated holes of size 4 x 12 mm (the first configuration), the martensitic high-hardness Mars® 300P steel plates perforated by circular holes with a diameter of 5 mm (in the second configuration); and in the third configuration, the martensitic Mars® 300 plates perforated by oblong holes (4 x 10 mm) were used. The performed impact tests proved that the tested add-on plates assured high protection against the impact of 7.62 x 51 .308 Win P80 hard-core armour piercing (AP) projectiles. It was also observed that the plates caused similar mechanisms of bullet failure.
Źródło:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa; 2018, 9, 1 (31); 31-48
2081-5891
Pojawia się w:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical analyses of ceramic/metal ballistic panels subjected to projectile impact
Autorzy:
Morka, A.
Nowak, J.
Powiązania:
https://bibliotekanauki.pl/articles/242960.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
computational mechanics
impact problem
armour perforation
ballistic resistance
ceramic armour
Opis:
The paper concerns research and development on modern, ceramic-based, protective layers used in the armour of tanks, combat vehicles and aeroplanes. A task of ceramic panels is reduction and dispersion of localized kinetic energy before a projectile or its fragment approaches the interior of protected object. The numerical investigations have been performed to determine the ballistic resistance of ceramic/metal panels subjected to projectile impact. The impact of the 7.62mm armour-piercing projectile on the ceramic elements backed by a metal plate was analyzed. The tested panels were composed of a ceramic layer (Al2O3, SiC or B4C) and a metal layer (7017 aluminium alloy, Armox 500T steel or Ti6Al-4 titanium alloy). Different shapes of ceramic elements were analyzed, including hemispheres and pyramids, with respect to standard flat tiles. The influence of the impact point location was also taken into considerations. The computer simulations were performed with the Finite Element Method implemented in LS-DYNA code. Full 3D models of the projectile and targets were developed with strain rate and temperature dependent material constitutive relations. The conclusions presented in the paper can be applied to develop modern impact protection panels in which the appropriate balance between the mass and protection level must be accomplished.
Źródło:
Journal of KONES; 2012, 19, 4; 465-472
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pancerze perforowane
Layered Perforated Steel Armour
Autorzy:
Stępniak, W.
Habaj, W.
Podgórzak, P.
Powiązania:
https://bibliotekanauki.pl/articles/403326.pdf
Data publikacji:
2014
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
mechanika
pancerze warstwowe
pancerze stalowe
pancerze perforowane
mechanics
layered armour
steel armour
perforated armour
Opis:
W artykule przedstawiono budowę i metodę badania warstwowych, stalowych pancerzy perforowanych opracowanych przez firmę HTK oraz Wojskowy Instytut Techniczny Uzbrojenia (WITU), mogących mieć zastosowanie jako dopancerzenie pojazdów lub innych obiektów lekko opancerzonych. Testom poddano konfiguracje pancerzy różniące się liczbą i grubością poszczególnych warstw (blach stalowych), kształtem i rozstawem otworów (perforacji), odległością (dylatacją) pomiędzy poszczególnymi warstwami, sposobem montażu warstw pomiędzy sobą. Warstwowe pancerze perforowane ostrzeliwano zgodnie z wymaganiami dla III i IV poziomu ochrony wg STANAG 4569 i AEP-55.
The article presents design and testing methods of layered perforated steel armour developed by HTK Company and Military Institute of Armament Technology, which can be used as add-on-armour of vehicles and other light armoured objects. Armour configurations differing in number and thickness of layers (steel plates), shape and spacing of holes (perforations), distance (dilatation) between individual layers and assembly of layers were tested. Layered armours were fired in accordance with STANAG 4569 and AEP-55 protection levels III and IV.
Źródło:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa; 2014, 5, 1 (15); 59-70
2081-5891
Pojawia się w:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research of ERAWA-1 and ERAWA-2 Reactive Cassettes
Badania kaset reaktywnych ERAWA-1 i ERAWA-2
Autorzy:
Wiśniewski, Adam
Powiązania:
https://bibliotekanauki.pl/articles/403358.pdf
Data publikacji:
2019
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
armour penetration
ERA armour
ERAWA-1 armour
ERAWA-2 armour
przebicie pancerza
pancerz ERA
pancerz ERAWA-1
pancerz ERAWA-2
Opis:
In the paper there are presented general parameters of shaped charge projectiles (SC) and explosively formed projectiles (EFP), designed for destroying of armed vehicles, and parameters of explosive reactive armours (ERA), which significantly increase capability of protection of rolled homogeneous armour (RHA) against piercing by these projectiles. There are shown examples of destruction of tanks not protected by the ERA. Their parameters are presented on the base of ERAWA-1 and ERAWA-2 Polish reactive cassettes for PT-91 Hard tank. There are described the following requirements: capability of protection of ERAWA-1 and ERAWA-2 cassettes as a result of reaction in the static test of shaped charge projectiles PG-7 and 125 mm BK-14M, effect in the dynamic test of 125 mm BM-15 projectile that pierces through due to its kinetic energy, and resistance to detonation of the cassettes fired by 12.7×107 mm AP B-32 projectiles. There are demonstrated results of the resistance to detonation of the neighboring ERAWA cassettes in case of detonation of the central cassette in the panel. There are presented results of test of resistance to detonation of the ERAWA cassettes while burning on them flammable material (gasoline, napalm), and resistance to detonation of the cassettes dropped from 3 m height onto a hard substrate of RHA. The safe distance for humans after detonation of the projectile and ERAWA-2 cassette was also tested.
W artykule przedstawiono ogólne parametry pocisków kumulacyjnych (Shaped Charge - SC) i pocisków formowanych wybuchowo (Explosively Formed Projectiles - EFP) służące do niszczenia pojazdów opancerzonych oraz parametry pancerzy reaktywnych (Explosive Reactive Armour - ERA), które w znacznym stopniu zmniejszają zdolność przebicia homogenicznych stalowych pancerzy (Rolled Homogeneous Armour - RHA) tych pocisków. Pokazano przykłady zniszczenia czołgów, które nie były chronione pancerzem reaktywnym (ERA). Na przykładzie polskich kaset reaktywnych ERAWA-1 i ERAWA-2 dla czołgu PT-91 Twardy zaprezentowano ich parametry. Określono następujące wymagania: zdolność ochronną kaset ERAWA-1 i ERAWA-2 w wyniku oddziaływania w teście statycznym pocisków kumulacyjnych PG-7 i 125 mm BK-14M, oddziaływania w teście dynamicznym 125 mm BM-15 pocisku przebijającego swoją energią kinetyczną oraz odporności na detonację kaset w wyniku ostrzału pociskami przeciwpancernymi (Armour Piercing - AP) 12.7x107 mm typu B-32. Pokazano wyniki badań odporności na detonację sąsiednich kaset ERAWA w przypadku detonacji środkowej kasety panelu. Przedstawiono wyniki badań odporności na detonację kaset ERAWA w wyniku palenia się na nich materiału łatwopalnego (benzyny, napalmu); odporności na detonację kaset w wyniku zrzucania ich z wysokości 3 m na twarde podłoże RHA. Badano również odległość bezpieczną dla ludzi po detonacji pocisku i kasety ERAWA-2.
Źródło:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa; 2019, 10, 3 (37); 9-18
2081-5891
Pojawia się w:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Validation studies of the simplified model of the missile with cumulative head
Autorzy:
Sybilski, K.
Panowicz, R.
Kołodziejczyk, D.
Niezgoda, T.
Powiązania:
https://bibliotekanauki.pl/articles/246839.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
RPG
simulation
FEM analysis
safety
slat armour
rod armour
Opis:
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.
Źródło:
Journal of KONES; 2012, 19, 3; 415-420
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Protection of Light Armours Against Shaped Charge Projectiles
Autorzy:
Wiśniewski, A.
Powiązania:
https://bibliotekanauki.pl/articles/403414.pdf
Data publikacji:
2010
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
materials technology
explosion
explosive reactive armour
shaped charge
projectile
armour protection
Opis:
The hereby work describes the examples of protection of light fighting vehicles armoured with additional reactive armours. The way of protecting of light fighting vehicles with the use of composite-reactive armours against penetration with HEAT projectiles (with a penetration ability of 300 mm RHA) and against small calibre (up to 14,5 mm) armour-piercing bullets are shown on the example of the BWP-1.Technical parameters of the CERAWA-1 armour and the its assembly on BWP-1 are presented. The hereby work also presents the results of static tests of several variants of reactive-passive panels of light fighting vehicles against PG-7 projectiles' perforation at the angle of 60° and 72° from normal to the cassette surface. Depending on the surface mass of the light reactive-passive armour panels, different levels of damage to the armour witness plate were achieved.
Źródło:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa; 2010, 1, 2 (2); 17-25
2081-5891
Pojawia się w:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical study of the shape effect in the ceramic based ballistic panels
Autorzy:
Morka, A.
Jackowska, B.
Niezgoda, T.
Powiązania:
https://bibliotekanauki.pl/articles/245901.pdf
Data publikacji:
2009
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
computational mechanics
impact problem
armour perforation
ballistic resistance
ceramic armour
Opis:
The numerical investigations have been performed to determine the front surface shape effect in the cer based armour systems. Different shapes of ceramic elements were analyzed, including hemispheres and pyramids with respect to standard flat tiles. The influence of the impact point location was also under considerations. The Computer simulations were performed with the Element Free Galerkin Method (EFG) implemented in LS-D code. An impact of the 14.5xll8mm B32 armour piercing projectile on the A12O3 different shape elements backe 7017 aluminium alloy plate was analyzed. Full 3D models of the projectile and targets were developed with strain, rate and temperature dependent material constitutive relations. The models of the projectile, ceramic and aluminium alloy targets were validated with utilization of the experimental data found in literature. The obtained results confirm, the preliminary presumptions, that the shape of the front surface can significant role in the overall ballistic resistance of the panel. Particularly projectile-target initial contact area st to be important factor as showed by impact point location analysis. The conclusions presented in this paper can be applied to develop modern impact protection panels where the appropriate balance between the mass and protection level must be accomplished.
Źródło:
Journal of KONES; 2009, 16, 4; 539-548
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamika tylnej części rdzenia wydłużonego pocisku podkalibrowego podczas strzału - cz. II
Dynamics of the kinetic round tail part at shooting - part II
Autorzy:
Włodaczyk, E.
Janiszewski, J.
Magier, M.
Powiązania:
https://bibliotekanauki.pl/articles/234581.pdf
Data publikacji:
2005
Wydawca:
Wojskowy Instytut Techniczny Uzbrojenia
Tematy:
pociski przeciwpancerne
armour-piercing shells
Opis:
W pracy wyprowadzono zamknięte analityczne wzory, które identyfikują stan naprężenia osiowego i prędkości masowej w tylnej części rdzenia wydłużonego pocisku podkalibrowego podczas strzału. Z analizy tych wzorów wynika, że naprężenie osiowe w rdzeniu zmienia się w sposób pulsacyjny. Koncentracja naprężeń występuje na styku rdzenia z tylną półką sabotu. Uzyskane wzory analityczne mogą służyć do obliczeń komputerowych.
A complete system of formulae to identify the axial stress status and mass velocities of the kinetic round tail part at shooting is presented in the paper. The analysis of formulae leads to a conclusion that axial stress in the core has a pulsating character and there is a stress concentration region at connection between the core and the sabot rear shelf. Provided formulae may be used for computer calculations.
Źródło:
Problemy Techniki Uzbrojenia; 2005, R. 34, z. 96; 25-38
1230-3801
Pojawia się w:
Problemy Techniki Uzbrojenia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimation of the Effectiveness of Reactive Armours with Nitrocellulose and Cellulose Composites in Jet Dispersion
Autorzy:
Trzciński, W. A.
Cudziło, S.
Dyjak, S.
Powiązania:
https://bibliotekanauki.pl/articles/358280.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
nitrocellulose-cellulose composites
reactive armour
Opis:
Monolithic nitrocellulose and cellulose (NC-C) composites solidified with starch were used in a model reactive armour with steel plates. The acceleration ability of the gaseous reaction products of composites was examined by the use of X-ray technique. The effectiveness of the reactive armour containing NC-C composites in weakening the ability of jet penetration was assessed experimentally on the basis of the size of holes in the steel plates and effects of the impact of jet particles on a steel plate located under the armour. It has been shown that the size of the holes in the driven plate increases and the degree of penetration of the “witness” plate is reduced with the decrease of the angle of jet impact. The modified Gurney model was applied to simulate the process of driving steel plates in the reactive armor with a layer of NC-C composite. The model was verified by using the results of X-ray recording of plates driven by the reaction products. The effectiveness of reactive armors with NC-C composites in weakening the penetration ability of shaped charge jets was evaluated in a manner based on the results of theoretical modeling
Źródło:
Central European Journal of Energetic Materials; 2015, 12, 1; 99-115
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preparation and Characterization of Monolithic Nitrocellulose-Cellulose Composites
Autorzy:
Cudziło, S.
Dyjak, S.
Trzciński, W. A.
Powiązania:
https://bibliotekanauki.pl/articles/358357.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
nitrocellulose-cellulose composites
reactive armour
Opis:
Monolithic nitrocellulose-cellulose composites were prepared by separately cross-linking the mixed precursors (NC + C) with hexamethylene diisocyanate (HDI). The syntheses were optimised according to the component mass ratios, HDI, solvent and catalyst concentration. The concentrations of the reactants and cure catalyst are the most important factors. The general method of synthesis involved dissolving HDI and the catalyst in methylene chloride and then wetting an NC-C mixture with the solution. The resulting mixture was placed in a sealed box for cross-linking at room temperature. Finally the solvent was evaporated at ca. 40 C. The NC-C composites obtained were characterized using TG/DTA and sensitivity to friction and drop weight impact, and were used as energetic materials in reactive armour elements.
Źródło:
Central European Journal of Energetic Materials; 2012, 9, 2; 139-146
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of bar and net screens structure protecting vehicles against anti-tank grenades fired from RPG-7
Autorzy:
Szudrowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/244409.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
bar armour
net armour
RPG vehicle protection
active protection systems
military vehicle
Opis:
The bar or net screens are ones of the methods to increase protection level of military vehicle crews against antitank grenades fired from RPG-7. Their task is to prevent generation of the shaped charge jet. The probability of vehicle's protection level when applying such types of screens depends on their structure - percentage share of the open space, i.e. space for which the flying grenade will not touch the structure element with its fuse, but it will be destructed. The two mechanisms are here mainly used: short circuit in the fuse circuit, deformation of conical section of the shaped charge warhead. This article presents analysis of structure of the bar and net screens due to share of the open space, for various impact angle of grenade in elevation and azimuth. The following were changed: thickness and width of bars and distance between them, thickness of wire and shape of individual net mesh. The solution of bar screen with the lowest weight and grenade destruction ability was selected. This solution was compared with the net screen offered currently on the market For the selected solutions, for angles increasing in elevation, up to 300 value, the bar screen has the larger open space than net screen. For angles in azimuth, the bar screen has larger open space for the entire range of angles. The bar screen is heavier by 50-60% when compared to the selected net screens, but their operation costs are lower. They are repaired in field conditions
Źródło:
Journal of KONES; 2011, 18, 1; 639-644
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamika tylnej części rdzenia wydłużonego pocisku podkalibrowego podczas strzału - cz. I
Dynamics of the kinetic round tail part at shooting - part I
Autorzy:
Włodarczyk, E.
Janiszewski, J
Magier, M.
Powiązania:
https://bibliotekanauki.pl/articles/234579.pdf
Data publikacji:
2005
Wydawca:
Wojskowy Instytut Techniczny Uzbrojenia
Tematy:
pociski przeciwpancerne
armour-piercing shells
Opis:
W pracy rozwiązano w zamkniętej postaci, za pomocą metody falowej (d'Alamberta), problem niestacjonarnych drgań tylnej części rdzenia wydłużonego pocisku podkalibrowego, obciążonego ciśnieniem produktów spalania prochu artyleryjskiego. Wyprowadzono analityczne, rekurencyjne wzory określające pola wzdłużnego naprężenia w rdzeniu i prędkości masowej jego elementow w funkcji zmiennych z i t. Zdaniem autorow jest to nowe rozwiązanie badanego problemu.
A solution of kinetic round tail part vibrations caused by impact of artillery powder burning products is provided in the paper in a completed form by the wave (d’Alambert) method. Analytical equations describing stress and mass velocities along the core as a function of variables z and t is also included as a new approach for the problem according to authors.
Źródło:
Problemy Techniki Uzbrojenia; 2005, R. 34, z. 96; 15-24
1230-3801
Pojawia się w:
Problemy Techniki Uzbrojenia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Personal Armour Testing versus Small Arms Ammunition when the Test Standard Doesn’t Fit
Autorzy:
Gotts, P. L.
Powiązania:
https://bibliotekanauki.pl/articles/403574.pdf
Data publikacji:
2015
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
mechanics
ammunition
armour
test standard
Opis:
Small arms ammunition which may impact personal armour and is deemed to be realistic as a threat by the user, may not always comply with armour test standards. In many cases there are good practical reasons why such realistic ammunition is not included in standards, including availability and variability. However, when using some test standards, approximate equivalents have been made between realistic ammunition and those levels available within the standards, for example, the use of 30.06 AP M2 as an alternative to 7.62 × 54R B32 API. Some weapon systems not represented within test standards, are not possible to be replaced by any test level listed in any test standard. For example the Heckler and Koch MP7 and FN P90, which are positioned in performance between handgun and rifle levels. Many armour specifiers and users will make minor modifications to levels in armour standards in order to allow the test method to be valid, but with slightly different ammunition types included within a specific level. For example NIJ 0101.06 Level III+ is often specified usually for materials-based reasons. Finally the paper will introduce how bullet surrogate projectiles may be an answer to some of the issues previously highlighted.
Źródło:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa; 2015, 6, 4 (22); 19-30
2081-5891
Pojawia się w:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Nano-Duplex NANOS-BA Steel for Application in Construction of Armours
Autorzy:
Garbarz, B.
Burian, W.
Marcisz, J.
Wiśniewski, A.
Powiązania:
https://bibliotekanauki.pl/articles/403624.pdf
Data publikacji:
2012
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
materials engineering
armour plates
nano-crystalline steel
Opis:
The paper presents mechanical and physical properties measured in static conditions, and some properties determined in dynamic conditions, of plates of new nano-composite bainite-austenite (NANOS-BA) steel to be used for construction of armours. Firing tests of NANOS-BA steel plates fixed on a base plate of RHA (Rolled Homogenous Armour), Armox 500T and Armox 600T steel, carried out by means of 12.7 mm B-32 projectiles have demonstrated that in the conditions of tests, NANOS-BA steel shows better protective properties than 500BHN and 600BHN – grade commercial plates. NANOS-BA steel plate of minimum 5 mm thickness has protected Armox 500T and Armox 600T plate from piercing. Quantitative effects were assessed of firing the NANOS-BA steel plates of 50 x 50 mm and 100 x 100 mm surface dimensions, and thickness in the range of 5÷10 mm, as well as sets of the NANOS-BA steel plates of 100 x 100 x (4÷8) mm dimensions, arranged in layers on the base plate. It was determined that ballistic limit V50 for NANOS-BA plate of 6.0 mm thickness, for the 7.62 x 51 mm M61 AP (Armour Piercing) projectile, amounts to 797±10 m/s. Based on the analysis which compared results of tests carried out with the application of various parameters it was estimated that the value of V50 obtained for NANOS-BA steel is higher than the parameters of the highest grade steel plates offered in the global market. The tests imply that NANOS-BA steel is a prospective material for armour construction which can enable to reduce weight of armours and/or to improve their protective parameters in comparison with the presently used structures. Due to very high protective capability, monolithic plates of NANOS-BA steel can be used as one of the layers of the composite armour.
Źródło:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa; 2012, 3, 4 (10); 7-22
2081-5891
Pojawia się w:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 100

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