Temat: IED - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Improvised charges placed on unmanned aircraft
Improwizowane ładunki wybuchowe przenoszone przez bezzałogowe statki powietrzne
Autorzy:: Ščurek, R.
Hütter, M.
Holubová, V.
Powiązania:: https://bibliotekanauki.pl/articles/952241.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Humanistyczno-Przyrodniczy im. Jana Długosza w Częstochowie. Wydawnictwo Uczelniane
Tematy:: Improvised Explosive Device
airport
types of IED
IED effects
unmanned aircraft
improwizowane urządzenia wybuchowe
lotnisko
rodzaje IED
efekty IED
bezzałogowe statki powietrzne
Opis:: Improvised explosive device (IED) is an explosive, which is constructed and used in ways other than in conventional military actions mainly by terrorist groups. This article deals with the types, designs and possible applications of IED, focusing primarily on possibilities of attacking the air transport industry. It also describes the danger of deploying unmanned aircraft - drone carrying IED near airports and airport buildings with intention to cause damages.
Improwizowane urządzenia wybuchowe (IED) są konstruowane i wykorzystywane w sposób inny niż konwencjonalne działania zbrojne, głównie przez grupy terrorystyczne. W tym artykule omówiono typy, budowę i możliwe zastosowanie IED, koncentrując się przede wszystkim na możliwościach ataku w branży transportu lotniczego. Opisano ponadto zagrożenie związane z rozmieszczeniem bezzałogowych statków powietrznych - dronów przenoszących IED, w pobliżu lotnisk i budynków portów lotniczych z zamiarem spowodowania szkód.
Źródło:: Prace Naukowe Akademii im. Jana Długosza w Częstochowie. Technika, Informatyka, Inżynieria Bezpieczeństwa; 2018, T. 6; 535-544
2300-5343
Pojawia się w:: Prace Naukowe Akademii im. Jana Długosza w Częstochowie. Technika, Informatyka, Inżynieria Bezpieczeństwa
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Analysis of IED sidebar explosion influence on hull of light fighting vehicle
Autorzy:: Barnat, W.
Powiązania:: https://bibliotekanauki.pl/articles/245829.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: blast
IED
protection
numerical analysis
Opis:: This paper shows preliminary numerical analysis of impact of IED sidebar blast on the hull of the light fighting vehicle in order to meet the current standards. Numerical analysis was carried out using a 3-dimensional shell FE model of the vehicle. The problem of the modelling method and computer simulations required several specific features for applied material models, e.g. physical state, plasticity, crispness, hardness. All necessary material properties were taken from the available literature or they were based on the experimental tests carried out in the Department of Mechanics and Applied Computer Science at the Military University of Technology. The STANAG 4569 is a legal basis that regulates the level of ballistic protection for such vehicles. Companies producing that kind of armoured vehicles for army, constantly look for the best and the newest energy consuming materials to ensure appropriate protection of the vehicle and the crew inside it against the effect of IED blast. The connection between a detonation wave and a formed shrapnel shell after detonation of the IED is created depending on the mass and kind of the charge. It is caused by impulsive load on a side bar or the bottom of a light vehicle. Both, safety of people and equipment endurance, is compatible with main rules that are common in Polish Army and it will be common rule in future. It is the fact that motivates the research centres and the arms industry to develop a product using advance computation method to construct new energy absorbing construction which will increase safety of the crew in the armed vehicle.
Źródło:: Journal of KONES; 2013, 20, 1; 7-14
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Design of flatbed for carrying damaged AFV Rosomak by air transportation
Autorzy:: Motrycz, G.
Stryjek, P.
Kałwa, H.
Powiązania:: https://bibliotekanauki.pl/articles/244528.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: operational transportation
AFV Rosomak
IED
Opis:: IED (Improvised Explosive Device) – those special type of mines have occurred in the last decade with particular intensity in the recent Afghan conflict. Due to their structure and the use of large weights of explosives, the improvised explosive devices pose very high risk on any wheeled AFVs. There is a need to have some logistic solution, to security transport of damaged AFV. Polish army needs a new semi- trailer, which would be able to transport damaged AFV on it, from Afghan to Poland, by special cargo airplane, call "Rusłan". Although this paper does not cover mounting of the loaded flatbed to the deck of the aircraft, this subsection analyzes the way how the crew of AN 124-100 aircraft fixes the AFVs during the flight. This study is the result of the research and development project No.O R00 0085 12 "Ancillary flatbed for loading of damaged AFVs ROSOMAK on board of the plane." This paper presents the results from execution of the conceptual works related to the ancillary flatbed construction concept. The construction of technology demonstrator commences on the basis of a scientific and industrial consortium (Military Institute of Armour and Automotive Technology-Air Force Institute of Technology -CELTECH-HYDROMEGA).
Źródło:: Journal of KONES; 2011, 18, 1; 359-364
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: AEGIS : Mobile Device for Generating Electromagnetic Curtain for Special Applications and Countering the Threats of RCIED
Autorzy:: Rajchowski, Piotr
Cwalina, Krzysztof K.
Magiera, Jarosław
Olejniczak, Alicja
Kosz, Paweł T.
Czapiewska, Agnieszka
Burczyk, Robert
Kowalewski, Krzysztof
Sadowski, Jarosław
Ambroziak, Sławomir J.
Powiązania:: https://bibliotekanauki.pl/articles/226112.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: electromagnetic curtain generator
IED
jammer
RCIED
Opis:: In the article, the concept, design and realization of the technological demonstrator of a mobile device for generating an electromagnetic curtain (with a name AEGIS) were presented, both in the hardware and software areas. The device is designed to block the radio communication which allow detonating the Radio Controlled Improvised Explosive Devices (RCIEDs). The preliminary laboratory tests of the demonstrator for generating the jamming signal, that were presented in the paper, aimed at assessing the correctness of the device operation and verification of generated signal parameters. On the basis of the obtained results, the ability to jam the cellular systems as well as other radio devices operating in the frequency band from 400 MHz to 2700 MHz was assessed.
Źródło:: International Journal of Electronics and Telecommunications; 2020, 66, 1; 187-192
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Analysis of a light caterpillar vehicle loaded with blast wave from detonated IED
Autorzy:: Barnat, W.
Niezgoda, T.
Panowicz, R.
Powiązania:: https://bibliotekanauki.pl/articles/247638.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: IED
vehicle shell
FE analysis
ground
Opis:: More and more impudent attacks on the military convoys in Afghanistan proved a huge danger of the improvised explosive devices - IED. Huger and more clever charges are a serious problem for vehicles protection. Additionally, hitherto defence standards and STANAG didn't predict such huge charges. Majority investigations were based on a 3 kg anti-tank mine. The article presents the results of numerical calculations for the elements of the combat vehicle supporting structure loaded with an impact generated by explosion of a huge explosive charge under the bottom of the vehicle with consideration of the wave reflected from the ground. Such an approach allows obtaining a good approximation of numerical simulations to real conditions of terroristic attacks. Additionally, the analysis of IED side influence on the vehicle shell was conducted. The explosive charge — IED — was simulated with the use of concentrated energy of properly selected (on the base of literature investigations) density and initial energy. During analyses of side explosive on the vehicle structure, the obstacle in the form of a building increasing the pressure impulse was taken into account. The paper presents the results of a numerical analysis in which Euler and Lagrange domains(describing a vehicle) were coupled. A perfect gas model was used to describe air parameters.. Additionally, the ground was described with a gas model. Every kind of material data were selected on the base of experimental investigations. A bilinear material model with a Cowper and Symonds strain rate model was used to describe a vehicle. Such an approach fully describes the phenomena occurring in the system.
Źródło:: Journal of KONES; 2010, 17, 4; 27-34
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Analysis of ied charge explosion on carrier road safety
Autorzy:: Borkowski, W.
Motrycz, G.
Powiązania:: https://bibliotekanauki.pl/articles/241739.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: IED
KTO Rosomak
safety
stability
steerability
Opis:: The present article describes the aspect of the impact of damages to the vehicle wheel-and-suspension system on the vehicle dynamics. The authors present the results of the tests conducted as a part of the Research and Development Project No. O R00 0083 12, concerning the "Research into behaviour of a military personnel carrier following the explosive damage to tyres in order to determine the vehicle driving potential and the aspect of ensuring safety to the crew". The purpose of the article is to illustrate the methods of testing special vehicles by way of discussion of KTO Rosomak example as well as to determine the impact of IED bomb detonation under the vehicle wheel on the response of the driver, to estimate the level of acceleration in the centre of the vehicle mass, and to determine the impact of damages on the crew safety. The research works have resulted in development of many models for simulation of the hazards, which are generated by the explosions of IEDs. In most cases, such models have not been validated by means of experimental procedures. There are presented a few experimental studies using the vehicles, which consist in detonation of explosives under the vehicles or close to the vehicles.
Źródło:: Journal of KONES; 2012, 19, 4; 76-82
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Experimental investigation of ied interrogation arm during normal operation
Autorzy:: Barnat, W.
Gotowicki, P.
Kiczko, A.
Dybcio, P.
Szczepaniak, M.
Jasiński, W.
Powiązania:: https://bibliotekanauki.pl/articles/243002.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: IED
improvised explosive device
interrogation arm
Opis:: The paper presents experimental static tests of IED interrogation arm for Shiba special vehicle. The test was performed by Military University of Technology and Military Institute of Engineer Technology. A number of strain gauges and camera markers were placed on the arm to allow recording strains and movements of specific construction points. The arm's motion was recorded using high speed camera. The equipment used were Vishay EA 06 120LZ 120 strain gauges with ESAM Traveller bridge. The sampling rate was 1000 Hz. The test was to pick up maximum design weight, move it to maximum overhang and then drop it on the ground. During the test, signal from gauges and video capture was recorded. The data was then processed using Thema 3D software to obtain markers displacements and angular changes of both arm parts. Afterwards, the test was repeated for different weight. The analysis showed, that maximum stresses in examined construction parts did not exceed yield stress of material. As well as that, in-depth motion analysis of the arm was conducted. Further works are twofold. Firstly, there will be tests concerning arm under dynamic load occurring during normal maintenance During this test only strains in specific construction parts will be recorded. Secondly, numerical model of an arm will be developed and validated using data obtained during both tests. This will help visualize stress distribution in each arm's part.
Źródło:: Journal of KONES; 2012, 19, 4; 571-575
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Experimental investigation of deflectors angle influence on energy absorption
Autorzy:: Gieleta, R.
Barnat, W.
Niezgoda, T.
Powiązania:: https://bibliotekanauki.pl/articles/241835.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: IED
improvised explosive device
hull resistance
deflector
Opis:: Numerical simulations without preliminary validation and model verification are vulnerable to errors. Best results are obtained when full experimental research is provided. Such tests are expensive and may be dangerous. Due to cost control and personnel safety, studies are often done in scale. Scale can affect both construction dimensions and applied load. In this paper four different vehicle's bottoms are examined: flat bottom and 3 types of deflectors. The paper presents four different vehicle's bottom shapes in order to examine deflector angle influence on energy absorption. The test included 4 cases: flat bottom broken-shaped deflector and deflectors with different apex angles 124 centigrade and 144 centigrade. For all cases the distance between explosive and panel was approximately 400 mm. The charge used was 100 g TNT. Flat bottom and deflectors were made of St3 steel with 2 mm thickness. For the purpose of the research a special test stand to examine effects of detonation wave was used. The force measurement system was designed in Department of Mechanics and Applied Computer Science. As a result, force versus time plots were obtained. The use of any deflector decreases maximum force affecting vehicle's hull.
Źródło:: Journal of KONES; 2012, 19, 4; 201-205
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Experimental investigation of selected explosion parameters for numerical model
Autorzy:: Barnat, W.
Gieleta, R.
Niezgoda, T.
Powiązania:: https://bibliotekanauki.pl/articles/241757.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: IED
improvised explosive device
numerical model
validation
Opis:: The aim of presented work is examination of blast wave, especially incident and reflected wave pressure. Due to many difficulties and complexity of phenomenon a complete study for different charges should be done. In presented paper two cylindrical TNT charges were used, weighting respectively 100 g and 200 g. Pressure wave was examined using original test stand designed and developed on Department of Mechanics and Applied Computer Science. A test steel test plate with 5 mm thickness was equipped with pressure gauge to measure reflected wave. Additionally, the plate was placed on four special electroresistance strain gauges...To measure force Vishay EA-06-120-060LZ strain gauges were used. For amplification of the dynamometers with strain gauges, MS1001 INFEL bridge was used. The system was used to validate the results from reflected wave pressure gauge. Shock wave pressures was measured using a special sensor model 137A21 amd M350B21 made by PCB Piezotronics At specific distance there was also incident wave pressure gauge. In order to fully examine the dynamic response of the plate an accelerometer was used. As a result, pressure versus time and acceleration versus time plots were obtained. The results will be used to validate numerical model of blast wave impact on a plate.
Źródło:: Journal of KONES; 2012, 19, 4; 9-13
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Selected protective algorithms of modern IED
Autorzy:: Olejnik, B.
Powiązania:: https://bibliotekanauki.pl/articles/97563.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:: IED
protection algorithms
IDMT overcurrent protection
admittance protection
Opis:: The paper presents some aspects of the work IED protection algorithms. These functions are hidden deep in the algorithms, however, very important for the power protection automation during abnormal failure in the MV lines. These functions have not been tested yet. An example of this problem is action of the IDMT overcurrent protection when the input current changes its value after protection start-up. Another example is the work of an earth fault protection based on Y0> criteria, when Y0 signal is distorted. The article is entirely based on the experience and measurements conducted by the author in the laboratories of the Institute of Electrical Power Engineering Poznań University of Technology.
Źródło:: Computer Applications in Electrical Engineering; 2013, 11; 389-395
1508-4248
Pojawia się w:: Computer Applications in Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Dynamic response of mine flail structure subjected to blast loading
Autorzy:: Barnat, W.
Gotowicki, P.
Kiczko, A.
Dybcio, P.
Szczepaniak, M.
Jasiński, W.
Krysiak, P.
Powiązania:: https://bibliotekanauki.pl/articles/247427.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: improvised explosive device (IED)
mine flail
demining machine
Shiba
Opis:: The paper presents experimental test of mine flail structure designed for a prototype of the Shiba special military vehicle. The Shiba vehicle is equipped with such structure to neutralize mine and IED threats which are one of the most harmful weapons used during modern warfare and peacekeeping missions. The experimental test was performed by the Military Institute of Engineer Technology and the Military University of Technology. The test procedure was based on NATO standards. Detonation of 8 kg TNT AT mine under wheel of the prototype was taken into consideration as a case of possible load during mine clearance operation on the battlefield. The test procedure included deformation measurements of selected parts of mine flail structure. During the tests, strain gauges and camera markers were placed on the structure to allow recording of strains and observation of the specific construction point’s movements. The motion was recorded using three high-speed Phantom cameras. Vishay EA-06-120LZ-120 strain gauges with ESAM Traveler bridge with sampling rate 100 kHz were used for strain measurements. The test was performed on military proving ground. As a result, strain versus time plots were obtained. The results were processed using ESAM software. Strain gauges were placed paired in specific structure points. High-speed camera recordings were obtained to visualize the process of structure response. The sequences of selected frames are shown. Pictures of deformed structure are presented.
Źródło:: Journal of KONES; 2013, 20, 3; 21-27
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Do-it-yourself terrorism. How do terrorist organizations inspire, support and teach their European supporters via internet?
Autorzy:: Wojtasik, Karolina
Horák, Vit
Powiązania:: https://bibliotekanauki.pl/articles/973029.pdf
Data publikacji:: 2019
Wydawca:: Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:: DIY jihad
terrorist organizations’ propaganda
ISIS
AQ
IED
organizacja terrorystyczna
Opis:: The following paper is a review article. It is an attempt to analyze the most widely available publications of Salafi terrorist organizations addressed to European supporters. This article concentrates primarily on publications describing tactics related to committing acts of terror on civilian population. Organizations like AQ and ISIS suggest launching attacks using the most available resources (attack using a knife or a sharp tool, arson, ramming with a vehicle), constructing various kinds of IED (pipe bomb, pressure cooker bomb), encourage to attack in public and poorly protected places or advise on how to organize a shooting and hostage-taking situation. Moreover, they state bluntly that theft, vandalism or causing major traffic accidents are also actions which can help in the war with infidels. The substantive value of the instructions is questionable – the authors of many of them (e.g. the attack using a knife) have vague idea about equipment and combat. The content of these publications suggests that they are prepared for people relatively young, with no general experience in life and combat training. Terrorist organizations skillfully select passages from Quran and hadiths to find a pseudo religious justification for barbarism and cruelty. Finally, they treat all victims indiscriminately – all infidels deserve to die and killing them is a glorious achievement.
Źródło:: System Safety : Human - Technical Facility - Environment; 2019, 1, 1; 947-955
2657-5450
Pojawia się w:: System Safety : Human - Technical Facility - Environment
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Modelling and numerical analysis of explosion underneath the vehicle
Autorzy:: Sławiński, G.
Świerczewski, M.
Malesa, P.
Powiązania:: https://bibliotekanauki.pl/articles/244937.pdf
Data publikacji:: 2017
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: shock wave
Light Armored Vehicle
LAV
CONWEP
protective structure
IED
Opis:: The article presents a method for numerical modelling of interaction of a shock wave on a simplified model of a light armoured vehicle. Detonation of the explosive material occurs centrally underneath the vehicle. The mass of an explosive charge was from 0.5 to 10 kg off TNT. Acceleration, displacement and kinetic energy of the floor plate/panel were verified during the tests. The model and numerical calculations were carried out using the following programs: CATIA, HyperMesh, LS-PrePost, LS-Dyna. CONWEP approach was applied to describe interaction of a pressure wave on the structure. For each case, the explosive charge was located at the same place under 700 mm from the top surface of the range stand. The results of the calculations present the effects of detonation under the vehicle without a protective system and with the protective system. The proposed protection system is made of low-density materials such as aluminum foam and cork. Thanks to such an approach, the effectiveness of the protective system will be checked to reduce the adverse physical quantities that threaten the health of the soldiers. Thanks to very simple solutions, it is possible to increase passive safety of passers and use of low-density materials will slightly increase the vehicle's mass leaving manoeuvrability at a similar level.
Źródło:: Journal of KONES; 2017, 24, 4; 279-286
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Numerical analysis of effects of IED side explosion on crew of lightarmoured wheeled vehicle
Autorzy:: Panowicz, R.
Sybilski, K.
Kołodziejczyk, D.
Powiązania:: https://bibliotekanauki.pl/articles/247154.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: numerical analysis
detonation
IED
ligtharmoured wheeled vehicle
Head Injury Criterion
Opis:: The article presents numerical simulation of interaction of a pressure wave coming from detonation of an improvised explosive device on the crew of the ligtharmoured wheeled vehicle. There was analysed one of the typical scenario, namely the explosion on the side of the vehicle, which the army deals with during the stabilization missions of different kind. The objective of the presented numerical investigations was to examine the influence of dynamics impulse, according to mass of detonated charge, on the crew in the characteristic anthropometric points of the body. The numerical investigations presented in the present paper aimed at testing the influence of the mass of the detonated charge on the load to which the vehicle crew is subjected to. In order to meet this target, there were used capability of coupling between the compressed air, described with the use of equations of continuum mechanics by Euler, and the vehicle with the crew described with the same equations but formulated by Lagrange. Interaction of both of the centres was executed with the use of general coupling. To perform the analyses, Ls-Dyna software based on the finite element method with the algorithm of explicit integration in time was used. Development of a full-scale model of the special vehicle was preceded with the laboratory tests on the mechanical properties of armour steel applied for constructing the vehicles of this type.
Źródło:: Journal of KONES; 2011, 18, 4; 331-339
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Numerical modelling and design of ALFC shield loaded by 20 MM FSP fragment
Autorzy:: Klasztorny, M.
Świerczewski, M.
Dziewulski, P.
Morka, A.
Powiązania:: https://bibliotekanauki.pl/articles/241865.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: light armoured vehicles
passive protection
IED
FSP
modelling
simulation
design
Opis:: The study develops numerical modelling and design of the ALFC shield loaded by the 20 mm 54 g FSP fragment moving at impact velocity of 1800 m/s (fragmentation simulation of IED devices), used to protect 5 mm-thick Armox 500T steel plate. The ALFC shield is composed of the ALF energy-absorbing subsystem and a 99.7% Al2O3 alumina ceramic layer. The ALF subsystem is designed to absorb blast wave impact energy induced by explosive materials up to 10 kg TNT. The ceramic layer is aimed at stopping FSP fragments. The 5 mm-thick Armox 500T steel plate reflects the body bottom segment of a light armoured vehicle. The main purpose of the study is to determine the minimum thickness of the ceramic layer at which the 5 mm-thick Armox 500T steel plate is fully protected from perforation. The ALF subsystem has the following layered structure: Al2024 aluminium alloy plate, SCACS hybrid laminate plate, ALPORAS aluminium foam, SCACS hybrid laminate plate. The layers are joined with Soudaseal 2K chemoset glue. SCACS hybrid laminate contains the following components: VE 11-M modified vinylester resin (matrix), SWR800 glass S plain weave fabric, Tenax HTA40 6K carbon plain weave fabric, Kevlar 49 T 968 aramid plain weave fabric. The total thickness of the ALF shield amounts to 76 mm. In the numerical modelling, the aluminium alloy plate and Armox 500T steel plate are working in the elasto-plastic range according to Johnson–Cook model. The 99.7% Al2O3 alumina ceramic is working in elasto--hort range according to JH-2 Johnson-Holmquist model. The simulations correspond to large displacements, large deformations and contact among all the components of the system. In FE mesh, the 8-node 24 DOF hexahedral finite elements with single integration point have been used. Additional failure criteria governing ad-hoc erosion of finite elements have been applied. The FEM modelling, simulation and postprocessing have been carried out using Catia, HyperMesh, LS-DYNA and LS-PrePost systems. The simulation results are presented in the form of displacement - perforation contours and the FSP final deformation for both the FSP–shield-plate and the FSP-plate systems. It has been pointed out that 18 mm-thick ceramic layer protects the LAV body bottom plate from perforation.
Źródło:: Journal of KONES; 2012, 19, 4; 301-313
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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