Relevant bibliographies by topics / Composite armour

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Composite armour'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Composite armour"

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Singh, B. Bhav, G. Sukumar, P. Ponguru Senthil, et al. "Future Armour Materials and Technologies for Combat Platforms." Defence Science Journal 67, no. 4 (2017): 412. http://dx.doi.org/10.14429/dsj.67.11468.

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<p align="JUSTIFY">The ultimate goal of armour research is to create better armour for battle worthy combat plat forms such as main battle tanks, infantry combat vehicles and light combat vehicles. In each of these applications, the main aim boils down to one of the two things; either reduce the weight without sacrificing protection or enhance the performance at same or even reduced weight. In practice, these ambitions can be fulfilled only if we have with us, appropriate improved armour materials, advanced and innovative technologies and also improved designs, which enable us to use them for creating next generation armour modules. Armour systems have progressed through improvements in metallic, ceramic and lightweight (low areal density) composite materials. Similarly, the advances in development of explosive reactive armour (ERA) and non-explosive reactive armour (NERA) have generated efficient armour system against contemporary high explosive antitank ammunition and missile threats for the armoured vehicles. Yet, to achieve armour performance exceeding that of the current light combat vehicles and main battle tanks, further advancements in armour materials, systems, and survivability technologies are required for new vehicular systems that weigh significantly less than the present combat platforms. Various approaches and advancements in the metallic and composite armour materials, ERA and NERA systems to improve the survivability of armoured vehicles in the futuristic multi-spectral battlefield scenarios are described.</p>
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SZUDROWICZ, Marek, and Waldemar ŚWIDERSKI. "DAMAGE IDENTIFICATION AND REPAIR OF COMPOSITE ARMOUR." Scientific Journal of the Military University of Land Forces 159, no. 1 (2011): 261–70. http://dx.doi.org/10.5604/01.3001.0002.2930.

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Composite armour is a preferred solution against military and paramilitary threats at present. Composite armour has to be resistant against impacts of fragments and bullets as well as mines and grenades. Except visible external damage of composite armour, its internal damage is equally essential. An IR thermography non-destructive testing method was used to identify delamination areas in composite armour. The results of these tests are presented in the paper. The authors also discuss the possibilities of composite armour repair methods.
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Chabera, P., A. Boczkowska, A. Morka, T. Niezgoda, A. Oziębło, and A. Witek. "Numerical and experimental study of armour system consisted of ceramic and ceramic- elastomer composites." Bulletin of the Polish Academy of Sciences Technical Sciences 62, no. 4 (2014): 853–59. http://dx.doi.org/10.2478/bpasts-2014-0094.

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Abstract The paper presents numerical and experimental results in the study of composite armour systems for ballistic protection. The modelling of protective structures and simulation methods of experiment as well as the finite elements method were implemented in LS DYNA software. Three armour systems with different thickness of layers were analyzed. Discretization for each option was built with three dimensional elements guaranteeing satisfactory accuracy of the calculations. Two selected armour configurations have been ballistically tested using the armour piercing (AP) 7.62 mm calibre. The composite armour systems were made of Al2O3 ceramics placed on the strike face and high strength steel as a backing material. In case of one ballistic structure system an intermediate ceramic- elastomer layer was applied. Ceramic- elastomer composites were obtained from porous ceramics with porosity gradient using pressure infiltration of porous ceramics by elastomer. The urea-urethane elastomer, as a reactive liquid was introduced into pores. As a result composites, in which two phases were interconnecting three-dimensionally and topologically throughout the microstructure, were obtained. Upon ballistic impact, kinetic energy was dissipated by ceramic body The residual energy was absorbed by intermediate composite layer. Effect of the composite shell application on crack propagation of ceramic body was observed.
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Cegła, Marcin. "SPECIAL CERAMICS IN MULTILAYER BALLISTIC PROTECTION SYSTEMS." PROBLEMY TECHNIKI UZBROJENIA 147, no. 3/2018 (2019): 63–74. http://dx.doi.org/10.5604/01.3001.0012.8312.

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The paper presents some questions of designing and testing for modern ballistic protecting screens and applied materials especially such as ceramics. Continuous development of present ballistic composite materials enforces the optimisation of existing solutions for ballistic protections in respect to the mass, thickness and costs of material. In times of technological arm race a reduction of armour weight by 5% is a success. It may be achieved by development of new solutions of armour systems applying the newest materials. Ballistic ceramics both enhances the resistance of the armour against armour piercing projectiles and reduces its areal dencity in relation to traditional steel armours due to high mechanical properties, low density, high hardness and dissipation of energy at the mechanism of breaking. The paper illustrates the development of ceramic based armours and the structure of a multilayer ballistic protection, and finally the meaning of its particular layers in fighting the projectile. Moreover the impact of mechanical properties of some ceramic materials used for designing a protection system into its ballistic resistance is discussed.
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Paman, Ashish, Govindan Sukumar, B. Ramakrishna, and Vemuri Madhu. "An optimization scheme for a multilayer armour module against 7.62 mm armour piercing projectile." International Journal of Protective Structures 11, no. 2 (2019): 185–208. http://dx.doi.org/10.1177/2041419619860533.

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This study presents a methodology to find the optimal sequence and thicknesses of individual material layers in a multilayer armour module. The methodology is demonstrated with application to three different metal alloys: Armox-500T, Ti-6Al-4V and Al-2024. Numerical simulations are performed first to study the ballistic impact behaviour of these three materials using AUTODYN-3D code. The results of numerical simulations are compared with experimental results for validating the numerical models. Thereafter, a three-layer armour module consisting of these three materials is optimized to defeat 7.62 armour piercing projectile with minimum weight. The optimization process involves carrying a set of numerical simulations based on the design of experiment approach to generate a response surface for the ballistic performance of a composite module. A new ballistic performance parameter is introduced to measure the ballistic response of the module by combining depth of penetration and residual velocity of the projectile to bring uniformity between two cases of partial and complete penetration. The proposed parameter provides more information on ballistic performance. The response surface for ballistic performance parameter is generated in terms of thicknesses for six possible combinations of three material layers. The adequacy of the proposed optimization scheme is confirmed with ballistic experiments. The sequence Armox-500T/Ti-6Al-4V/Al-2024 with thicknesses 5.5, 8.5 and 13 mm, respectively, is found to be the best against 7.62 mm armour piercing projectile. Furthermore, the performance of each individual material is compared with an optimized three-layer armour module. The composite module is found to be weight efficient over Armox-500T, Al-2024 and provides better thickness efficiency over Al-2024. The weight efficiency and thickness efficiency of Ti-6Al-4V are found to be comparable to the composite module. This study emphasizes the necessity of developing new procedures to provide reliable estimates of design parameters for a multilayer armour module.
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MAYSTRENKO, Anatoliy L., Volodymyr I. KUSHCH, Evgeniy A. PASHCHENKO, Vitaliy G. KULICH, Olecksiy V. NESHPOR, and Sergiy P. BISYK. "Ceramic Armour for Armoured Vehicles Against Large-Calibre Bullets." Problems of Mechatronics Armament Aviation Safety Engineering 11, no. 1 (2020): 9–16. http://dx.doi.org/10.5604/01.3001.0014.0279.

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Modelling the armour-piercing bullets B-32 calibre 12.7 mm penetration into the double-layer ceramic-composite armour has been performed for the armour blocks of two designs. The first one is a layer of ceramic square tiles supported by the glass or polyamide fabric. Modelling and subsequent ballistic tests have shown that the conical Hertz crack localized in the ceramic tile is formed. The tile is destroyed from the spread of radial cracks, and the entire armour unit becomes unable to sustain the repeated hit of the bullet. In the second case, the armour block consists of the discrete epoxy-filled cylindrical ceramic elements with spherical ends. The advantage of this "discrete" armour is localization of the damage zone and thus an ability to sustain the multiple bullet hits. The ballistic tests of the compared armour units have shown that both provide effective additional protection of light-armoured vehicles against the normal impact of the calibre 12.7 mm bullet.
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Pacek, D., P. Kolodziejczak, K. Grzelak, J. Torzewski, and P. Podgorzak. "The protective capability of the laser welded armour steel plates." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 234, no. 5 (2020): 711–21. http://dx.doi.org/10.1177/1464420720906429.

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Despite the intensive development of plastics and composite materials in the case of armours employed to protect vehicles, armour steel remains a material commonly and effectively used. This is especially evident in the base armour of armoured vehicles, where the body is made of welded armour steel plates. However, the area of joining both the weld and the heat affected zone are sensitive areas with the reduced protective capability. In the case of laser welding in comparison with methods such as shielded metal arc welding and gas metal arc welding, it is possible to narrow down the above mentioned areas. The paper presents the results of research on the protective capability of welded zone of armour steel plates with a hardness of 500 HB. In the first part of the work, in order to select the proper parameters for the bonding process, different connection variants were made and their microstructure and selected mechanical properties were analysed. After selecting the best variant of the welding process, samples (200 mm × 200 mm) consisting of two welded plates with dimensions 100 mm × 200 mm were made for testing. The thickness of the plates was selected in such a way that in the areas outside the bonding zone, the lack of complete perforation by the projectiles used in the tests is guaranteed. The samples were shot at the weld location and at different distances from the weld to verify, for the chosen method of joining steel plates, if the welded armour loses its protective capability and, possibly, how wide this area may be.
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Lu, Jiang Ren, Xin Li Sun, Xing Hui Cai, San Qiang Dong, and Guo Liang Wang. "Numerical Study on the Ballistic Impact on Lightweight Composite Armour." Applied Mechanics and Materials 670-671 (October 2014): 824–28. http://dx.doi.org/10.4028/www.scientific.net/amm.670-671.824.

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A lightweight sandwich composite armours has been established by comparing the ballistic resistance of the potential component materials. The ballistic-resistance properties of the armours under impacting by the bullet with 12.7mm diameter are also numerically investigated by using finite element software LS-DYNA. Numerical modeling is used to obtain an estimate for the ballistic limit velocity (V50) and simulate penetration processes. The focus is placed on the energy absorption capabilities of different component layers with same density per unit area. The influence of stacking sequence and thickness ratio of ceramic/fiber layer has been analyzed in detail. Results indicate that the composite armour having optimal thickness ratio of ceramic/fiber layer in the same density and its mass is 29% lighter than of 4340 steel target.
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Balos, Sebastian, Daniel Howard, Adrian Brezulianu, and Danka Labus Zlatanović. "Perforated Plate for Ballistic Protection—A Review." Metals 11, no. 4 (2021): 526. http://dx.doi.org/10.3390/met11040526.

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In recent years, the interest of the scientific community in perforated plates for ballistic protection has increased. Perforated plates do not represent protection by themselves, rather, they are used in the armour systems of armoured vehicles, in conjunction with base armour, since they are intended to induce bend stresses, where a penetrating core fracture occurs. The fragments are subsequently stopped by base armoured vehicle armour. Although for the first time used several decades ago, perforated plates are found to be attractive even today. The main reason is the combination of very convenient properties. Besides high mass effectiveness, they possess a high multi-impact resistance, since their perforations arrest cracks. Therefore, a relatively wide array of materials is suitable for perforated plate fabrication, ranging from alloy steel to some types of cast iron. Being made of metallic materials, raw material costs are relatively low compared to ceramics or composite materials, making them very attractive for present and future armoured vehicles. Finally, armour system consisting of a perforated plate and base plate at some distance, reduce the effectiveness of both shaped charge jets and act as blast mitigators.
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Medvedovski, E. "Lightweight ceramic composite armour system." Advances in Applied Ceramics 105, no. 5 (2006): 241–45. http://dx.doi.org/10.1179/174367606x113537.

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Dissertations / Theses on the topic "Composite armour"

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Bourke, P. "Ballistic impact on composite armour." Thesis, Cranfield University, 2007. http://hdl.handle.net/1826/4016.

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Armoured vehicles in current military service are requiring ever more protection to enable them to carry out their mission in a safe, effective manner. This requirement is driving vehicle weight up to such an extent that the logistics of vehicle transport is becoming increasingly difficult. Composite materials are an important material group whose high specific properties can enable structures to be manufactured for a far lower weight than might otherwise be possible. Composite materials in an armoured vehicle will require structural performance as well as ballistic performance. The mechanical and ballistic performance of tl-kk armour and structural composites has been investigated against dcformable and armour-piercing ammunitions, over a range of impact velocities. Testing has indicated that heavy/coarse reinforcement weaves perform well against deformable ammunition and light/fine weaves well against armour piercing ammunition. The effect of individual mechanical properties on ballistic performance has been investigated as has the damage morphology of impacted materials. High tensile strength combined with low fracture toughness has been identified as an important requirement. Failure mechanisms have been identified from sections of ballistic impacts and through the use of mechanical test data the energy absorbed by each mechanism has been calculated. An energy audit has been carried out of all materials tested and a modelling procedure developed based on mechanical characteristics, damage morphology and failure mechanisms. This model has been tested against literature results and found to give very satisfactory performance.
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Zhu, Fuyou. "Advanced materials for composite armour." Thesis, Queen Mary, University of London, 2009. http://qmro.qmul.ac.uk/xmlui/handle/123456789/1775.

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Composite integral armour plays an important role in future combat system. Despite numerous experimental studies there are still disadvantages such as complex manufacturing process, relatively big damage area, difficult to repair and limit shape etc. Composite integral armour without all these problems is essential for the success of future main battle tank which has a total weight of only 20 tons. 3D fabrics are seen as potential solution to poor impact damage tolerance of textile composites. Binder yarns in through-thickness direction can bridge cracks and stop crack tip growth resulting very good impact damage tolerance. The major purple of this work is to incorporate new materials and new configuration into composite integral armour. The underlying premise is that ballistic performance of new armour is judged mainly by single hit ballistic limit followed by damage resistance which in turn followed by energy absorption in high energy low velocity impact. Computer simulation of 3D textile composites and damage mechanism study were used through-out the study for analysing and explaining experimental results. Judged by these properties, conclusions regarding to ballistic performance of eight 3D texile composties were made. The benefit of the work will be a new explanation of composite armour research. This will help the success of future combat system.
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Gautam, Mayank. "Hybrid composite wires for tensile armour in flexible risers." Thesis, University of Manchester, 2001. https://www.research.manchester.ac.uk/portal/en/theses/hybrid-composite-wires-for-tensile-armour-in-flexible-risers(c5adfc24-9a23-40ab-a038-dba352df6fc4).html.

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Flexible risers that carry hydrocarbon fuels from the subsea facilities to the floatation units above the sea surface are composed of multiple metallic and polymeric layers (in their wall). Among these layers, the tensile armour layer consists of several helically wound metallic wires; these tensile armour layers carry the weight of the riser, provide tensile stiffness & strength and maintain the structural integrity of the riser structure during harsh underwater currents. However, as the oil & gas fields in shallow waters are receding, the oil & gas industry is being forced to move towards deeper offshore waters, where the metallic tensile armour wires pose limitations (fatigue, corrosion, weight, etc.). In this thesis an alternative to metallic tensile armour wires will be presented in form of a flexible hybrid composite formed by stacking seven pultruded composite (carbon and vinyl-ester) circular rods in form of hexagonal pack, held together by an over-braid (Dyneema fibres) sleeve. The manufacturing process for hybrid composite tensile armour wires will be studied and their mechanical properties will be presented. A multi-scale finite element model developed for hybrid composite wires will be presented in this thesis to help further understand the mechanical properties of hybrid composite wires.
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Hazzard, Mark Kenneth. "Composite armour : an investiagion of the deformation and failure mechanisms of Dyneema® composites." Thesis, University of Bristol, 2017. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.723515.

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Provost, Benjamin. "Etude et évaluation d'une solution composite à renfort tissé interlock pour la protection balistique de véhicule." Thesis, Valenciennes, 2013. http://www.theses.fr/2013VALE0003/document.

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Cette thèse a été réalisée au sein des laboratoires du GEMTEX et du LAMIH, et porte sur l’étude et l’évaluation d’une solution composite à renfort tissé pour la protection balistique de véhicule. L’enjeu de cette thèse consiste à explorer le potentiel des solutions en composite à renfort tissé interlock 3D dans le cas d’unimpact à haute vitesse. Deux solutions composites ont été mis au point en laboratoire, intégrant le même renfort tissé interlock mais mis en oeuvre par deux procédés d'imprégnation différents. Ces composites ont été évalués à l’impact par un FSP (Fragment Simulating Projectile) de 20 mm de diamètre, dans une configuration de backing, c'est-à-dire en face arrière d’une plaque métallique utilisée pour la protection contre les impacts à haute vitesse.Plusieurs campagnes d’essais ont été réalisées permettant d’optimiser nos structures interlocks 3D afin de répondre au mieux à la sollicitation dynamique. Les résultats à l’impact de ces composites ont été comparés à ceux d’une solution composite dite de référence généralement utilisée dans les véhicules blindés à base de tissés 2D empilés suivant différentes directions. Ces essais nous ont permis de faire ressortir les performances de l’une des structures développée présentant des capacités de protection à l’impact supérieures aux composites de référence.Afin d’en comprendre les mécanismes des renforts mis en jeu, nous avons représenté numériquement ces tissus interlocks soumis à l’impact. Des modèles numériques innovants ont été simulés dans le but de représenter le renfort tissé de façon réaliste grâce aux mesures obtenues par micro-tomographie à rayons X
This thesis was performed at the laboratories of GEMTEX and LAMIH on study and evaluation of a solution based on warp interlock reinforced composite for vehicle ballistic protection. The main purpose of this thesis is to explore the potential of warp interlock reinforced composite solutions in the case of a high velocity impact. We have chosen to study two composite solutions manufactured in our laboratory which presented the same warp interlock reinforcement but with different resins and infusion processes. Those composites were tested by an FSP (Fragment Simulating Projectile) impact as armour backing. Few campaign of tests were performed which helped us to optimize our warp interlock structure in order tohave a better response to the dynamic loading. The impact results of our composites have been compared with those of the benchmark which is a composite generally used backing. Thanks to these tests we had the possibility to observe that one of our structures present a better impact behaviour than the others. In order to improve our representation of those reinforcement, we have been working on the numerical modelling of those warp interlock submitted to impact. Innovative numerical models have been set up thanks to micro-tomography analysis allowing a more realistic representation of the reinforcement
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Escalé, Laurent. "Élaboration d'un matériau composite multifonctionnel : matériau structural intégrant la fonction de blindage pour protéger des menaces de type "petits fragments"." Thesis, Ecole nationale des Mines d'Albi-Carmaux, 2013. http://www.theses.fr/2013EMAC0006/document.

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Le fuselage des avions de nouvelle génération fera de plus en plus appel aux matériaux composites à matrice organique qui présentent des propriétés spécifiques particulièrement intéressantes. Or les structures aéronautiques sont exposées à de nombreuses exigences et en particulier à celle induite par l'impact de "petits fragments" à haute énergie. Le non percement du fuselage nécessite donc d'adjoindre une fonction de blindage à sa fonction habituelle de tenue mécanique. Par rapport à cette problématique, une approche avec intégration de fonction a été adoptée et a mené au développement d'un matériau composite multifonctionnel dans le cadre de ce travail de recherche. L'étude du comportement sous impact à basse vitesse (essais Charpy) et à haute vitesse (essais au canon à gaz) de composites à matrice organique aéronautiques courants et plus spécifiques au blindage a d'abord été réalisée. Cette étude a permis d'établir le lien entre les constituants des matériaux et les différents modes d'absorption de l'énergie d'impact. Plusieurs paramètres ont été discriminés : nature de la matrice (thermodurcissable - thermoplastique), nature de la fibre (minérale - organique), architecture du renfort (UD - tissée - tricotée), taux de porosité intra-mèche, apport d'éléments spécifiques aux inter-plis. Plusieurs concepts de multimatériaux sont ensuite proposés. Ils ont été définis à partir de combinaisons des différents comportements observés sur matériaux élémentaires et sont basés sur différents scénarii d'endommagement. Ils ont été testés à haute vitesse d'impact. Les observations révèlent une aptitude particulière de la fibre de polypara-phénylène-2,6-benzobisoxazole (PBO) à absorber une grande quantité d'énergie par déformation inélastique, notamment lorsqu'elle est faiblement imprégnée
Next generation aircraft fuselage will increasingly use polymer matrix composites that exhibit interesting specific properties. Aeronautical structures are exposed to many requirements and amongst them to that induced by the impact of high energy "small fragments". In order to avoid fuselage break through, an armour function has to be added to its usual mechanical function. With respect to this issue, an approach aiming the integration of such function was adopted and led to the development of a multifunctional composite material within this research work. The study of the behaviour under low speed (Charpy tests) and high speed (gas gun tests) impact of common and more specific organic matrix composites dedicated to armour was first performed. This study allowed establishing the link between the material components and the various modes of the impact energy absorption. Several parameters were discriminated: matrix type (thermosetting - thermoplastic), fibre type (mineral - organic), reinforcement architecture (UD - woven - knitted), intra-mesh porosity level, addition of specific inter-ply elements. Several concepts of multimaterials were then proposed. They were defined from combinations of various behaviours observed in the basic materials and are based on different damaging scenarios. They were tested under high speed impact. The observations show a particular aptitude of the polyparaphenylene-2,6-benzobisoxazole (PBO) fibre to absorb a large amount of energy by inelastic deformation, especially when it is poorly impregnated
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El-Habti, Mohamed. "Finite element analysis of composites integral armour." Thesis, Queen Mary, University of London, 2010. http://qmro.qmul.ac.uk/xmlui/handle/123456789/1778.

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This thesis is focussed on a numerical method to analyse the ballistic performance of multi-material armour system. The overall objective of this work is to develop numerical models to be used within MSC. DYTRAN capable of accurately predicting the ballistic response of multi-material composite armour, the effect of impact type on the damage and to help improve the armour design. The research presented in this thesis includes a review of the existing ceramic and composite damage models, combine, modify and optimize them to investigate the type and extent of damage response of the materials used in ballistic protection. The numerical model leads to insight into the parameters governing the penetration and deformation response of laminated composite subjected to ballistic impact. The effect of various model parameters on the predicted ballistic response of the ballistic plate is intensively investigated. It was found that the through thickness properties used in the numerical model have a large effect on the predicted ballistic response. A detailed study of the effect of mesh density on the numerical solution has shown that the numerical predictions are highly influenced by the element shape and size. The smaller the element the sooner the failure occurs, the less energy is absorbed and the smaller the time step becomes leading to a larger simulation time. The accuracy of the composite numerical model was evaluated by comparing the numerical prediction to experimental data obtained from ballistic impact trials. Very good agreement has been found between the experimental and numerical results for both observations of damage and deformation. Further, values of measured ballistic limit are in very good agreement with the values gained from the simulations. This correlation forms a verification of our finite element simulations. Fibre breakage is generally acknowledged as the main energy absorption mechanism in damage due to ballistic impact; in this work the delamination and matrix failure have been shown to increasingly contribute to the energy absorption mechanism by reducing the matrix strength. Further study of multi-layered ceramic composite armour has shown that use of ceramic tiles can improve the ballistic protection of the armour within an optimum ceramic composite ratio. Finite element simulation has been shown to be a very powerful technique to predict the behaviour of composite and ceramic panels under ballistic impact.
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Basaran, Mustafa Bulent. "Computational Analysis Of Advanced Composite Armor Systems." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/3/12608858/index.pdf.

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Achieving light weight armor design has become an important engineering challenge in the last three decades. As weapons becoming highly sophisticated, so does the ammunition, potential targets have to be well protected against such threats. In order to provide mobility, light and effective armor protection materials should be used. In this thesis, numerical simulation of the silicon carbide armor backed by KevlarTM composite and orthogonally impacted by 7.62mm armor piercing (AP) projectile at an initial velocity of 850 m/s is analyzed by using AUTODYN hydrocode. As a first step, ceramic material behavior under impact conditions is validated numerically by comparing the numerical simulation result with the test result which is obtained from the literature. Then, different numerical simulations are performed by changing the backing material thickness, i.e. 2, 4, 6 and 8mm, while the thickness of the ceramic is held constant, i.e. 8mm. At the end of the simulations, optimum ceramic/composite thickness ratio is sought. The results of the simulations showed that for the backing thickness values of 4, 6 and 8mm, the projectile could not perforate the armor system. On the contrary, the projectile could penetrate and perforate the armor system for the backing thickness value of 2mm and it has still some residual velocity. From these results, it is inferred that the optimum ceramic/composite thickness ratio is equal to about 2 for the silicon carbide and kevlar configuration.
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Ünaler, Erol Tanoğlu Metin. "Development and characterization of ligt-weight armor materials." [s.l.]: [s.n.], 2005. http://library.iyte.edu.tr/tezler/master/malzemebilimivemuh/T000330.pdf.

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Browning, Ashley (Ashley Renée). "Mechanics and design of flexible composite fish armor." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/74456.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 123-126).
Inspired by the overlapping scales found on teleost fish, a new composite architecture explores the mechanics of materials to accommodate both flexibility and protection. These biological structures consist of overlapping mineralized plates embedded in a compliant tissue to form a natural flexible armor which protects underlying soft tissue and vital organs. Here, the functional performance of such armors is investigated, in which the composition, spatial arrangement, and morphometry of the scales provide locally tailored functionality. Fabricated macroscale prototypes and finite element based micromechanical models are employed to measure mechanical response to blunt and penetrating indentation loading. Deformation mechanisms of scale bending, scale rotation, tissue shear, and tissue constraint were found to govern the ability of the composite to protect the underlying substrate. These deformation mechanisms, the resistance to deformation, and the resulting energy absorption can all be tailored by structural parameters including architectural arrangement (angle of the scales, degree of scale overlap), composition (volume fraction of the scales), morphometry (aspect ration of the scales), and material properties (tissue modulus and scale modulus). In addition, this network of armor serves to distribute the load of a predatory attack over a large area to mitigate stress concentrations. Mechanical characterization of such layered, segmented structures is fundamental to developing design principles for engineered protective systems and composites.
by Ashley Browning.
S.M.
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Books on the topic "Composite armour"

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Lisa, Prokurat Franks, Ohji T, Wereszczak Andrew, and American Ceramic Society, eds. Advances in ceramic armor IV: A collection of papers presented at the 32nd International Conference on Advanced Ceramics and Composites, January 27-February 1, 2008, Daytona Beach, Florida / editor, Lisa Prokurat Franks ; volume editors, Tatsuki Ohji, Andrew Wereszczak. Wiley, 2009.

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International, Conference on Advanced Ceramics and Composites (33rd 2009 Daytona Beach Fla ). Advances in ceramic armor V: A collection of papers presented at the 33rd International Conference on Advanced Ceramics and Composites, January 18-23, 2009, Daytona Beach, Florida. Wiley/John Wiley, 2010.

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International Conference on Advanced Ceramics and Composites (32nd 2008 Daytona Beach, Fla.). Advances in ceramic armor IV: A collection of papers presented at the 32nd International Conference on Advanced Ceramics and Composites, January 27-February 1, 2008, Daytona Beach, Florida / editor, Lisa Prokurat Franks ; volume editors, Tatsuki Ohji, Andrew Wereszczak. Wiley, 2009.

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Armor Ceramics Symposium (8th 2010 Daytona Beach, FL.). Advances in ceramic armor VI: A collection of papers presented at the 34th International Conference on Advanced Ceramics and Composites, January 24-29, 2010, Daytona Beach, Florida. Edited by Swab Jeffrey J, Mathur Sanjay, Ohji T. (Tatsuki), American Ceramic Society, and International Conference on Advanced Ceramics and Composites (34th : 2010 : Daytona Beach, Fla.). Wiley, 2010.

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Swab, Jeffrey J., ed. Advances in Ceramic Armor: A Collection of Papers Presented at the 29th International Conference on Advanced Ceramics and Composites, January 23-28, 2005, Cocoa Beach, Florida, Ceramic Engineering and Science Proceedings, Volume 26, Number 7. John Wiley & Sons, Inc., 2005. http://dx.doi.org/10.1002/9780470291276.

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Widjaja, Sujanto, Soshu Kirihara, and Jerry C. LaSalvia. Advances in Ceramic Armor IX. Wiley & Sons, Incorporated, John, 2013.

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Widjaja, Sujanto, Soshu Kirihara, and Jerry C. LaSalvia. Advances in Ceramic Armor IX. Wiley & Sons, Incorporated, John, 2013.

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Mathur, Sanjay, Jeffrey J. Swab, Acers Staff, and Michael Halbig. Advances in Ceramic Armor VIII. Wiley & Sons, Incorporated, John, 2012.

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Mathur, Sanjay, Jeffrey J. Swab, and Michael Halbig. Advances in Ceramic Armor VIII. Wiley & Sons, Incorporated, John, 2012.

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Gyekenyesi, Andrew, Michael Halbig, and Jerry C. LaSalvia. Advances in Ceramic Armor X. Wiley & Sons, Incorporated, John, 2015.

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Book chapters on the topic "Composite armour"

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Reddy, P. Rama Subba, S. Geasin Savio, and Vemuri Madhu. "Ceramic Composite Armour for Ballistic Protection." In Handbook of Advanced Ceramics and Composites. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-73255-8_10-1.

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Reddy, P. Rama Subba, S. Geasin Savio, and Vemuri Madhu. "Ceramic Composite Armour for Ballistic Protection." In Handbook of Advanced Ceramics and Composites. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-16347-1_10.

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Nieberle, Timo, Shiv Ranjan Kumar, Amar Patnaik, and Chandramani Goswami. "Review: Composite Materials for Armour Application." In Lecture Notes in Mechanical Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4018-3_22.

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Benga, Gabriel, Nikoloz Iakobidze, Danut Savu, Sorin Savu, and Iulian Stefan. "Creation of New Generation Titanium Diboride Composite Armour Material." In NATO Science for Peace and Security Series B: Physics and Biophysics. Springer Netherlands, 2020. http://dx.doi.org/10.1007/978-94-024-2021-0_12.

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Eksik, Ömer, Levent Turhan, Enver Yalçın, and Volkan Günay. "Numeric Simulation of the Penetration of 7.62 mm Armour Piercing Projectile into Ceramic/Composite Armour." In Advanced Structured Materials. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-00506-5_15.

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Zaera, R. "Ballistic Impacts on Polymer Matrix Composites, Composite Armor, Personal Armor." In Impact Engineering of Composite Structures. Springer Vienna, 2011. http://dx.doi.org/10.1007/978-3-7091-0523-8_7.

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Akella, Kiran. "Multilayered Ceramic-Composites for Armour Applications." In Handbook of Advanced Ceramics and Composites. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-73255-8_11-1.

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Akella, Kiran. "Multilayered Ceramic-Composites for Armour Applications." In Handbook of Advanced Ceramics and Composites. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-16347-1_11.

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Vandeperre, L. J., and J. H. Teo. "Pressureless Sintering of SiC-B4C Composites." In Advances in Ceramic Armor IX. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118807576.ch10.

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Rajendran, Senthil Kumar, Papiya Biswas, Roy Johnson, and Yashwant Ramachandra Mahajan. "Transparent Ceramics for Ballistic Armor Applications." In Handbook of Advanced Ceramics and Composites. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-73255-8_12-1.

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Conference papers on the topic "Composite armour"

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Resnyansky, A. D., S. Parry, N. K. Bourne, D. Townsend, and B. James. "Impact and damage of an armour composite." In SHOCK COMPRESSION OF CONDENSED MATTER - 2015: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter. Author(s), 2017. http://dx.doi.org/10.1063/1.4971684.

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Cakir, Tanju, R. Orhan Yildirim, and Bilgehan Ogel. "Optimisation of Ceramic/Steel Composite Armour of a Constant Thickness." In ASME 7th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2004. http://dx.doi.org/10.1115/esda2004-58627.

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Impact resistance of ceramic/steel composite armour against 7.62 mm AP (armour piercing) projectile is examined analytically, numerically and experimentally. Total armour thickness is taken to be constant. Ceramic tile thickness and steel plate thickness are changed to observe the effect of the variation of the thickness ratio on the impact behaviour of ceramic/steel armour. Results show that the impact behaviour of ceramics is related to the ceramic tile thickness and back plate thickness. It is found that there is an optimum ceramic/steel thickness ratio which provides the best protection against a specified threat for a constant total armour thickness.
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Gositanon, Apirath, Mahin Chaiyarit, and Sawitri Phabjanda. "Ballistic Simulation and Verification of Ceramic/rubber Composite Armour." In 2018 6th International Conference on Mechanical, Automotive and Materials Engineering (CMAME). IEEE, 2018. http://dx.doi.org/10.1109/cmame.2018.8592310.

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DOWNES, DEVON, and MANOUCHEHR NEJAD ENSAN. "Numerical Analysis of Ceramic Composite Armour Subjected to Ballistic Impact." In 30th International Symposium on Ballistics. DEStech Publications, Inc., 2017. http://dx.doi.org/10.12783/ballistics2017/17049.

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Yu, Liang, Teofilo Barbosa Neto, and Mark Kalman. "Recommended Practice for Unbonded Flexible Pipe Employing Composite Armour Material." In OTC Brasil. Offshore Technology Conference, 2013. http://dx.doi.org/10.4043/24309-ms.

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Akella, Kiran. "Simplified Material Model for Simulation of Ceramic-Composite Armour Penetration." In 5th International Congress on Computational Mechanics and Simulation. Research Publishing Services, 2014. http://dx.doi.org/10.3850/978-981-09-1139-3_189.

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Lambert, Anaïs, Anh-Tuan Do, Antoine Felix-Henry, and François Grosjean. "Qualification of Unbonded Dynamic Riser With Carbon Fiber Composite Armours." In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/omae2012-83130.

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The development of Ultra Deep Water (UDW) oil and gas fields, down to 3000 m and beyond, requires high specification flowline and riser systems. At these depths, the flexible pipes must withstand high axial loads and severe dynamic loadings generated by currents, waves and vessel motions. Moreover, the constraints generated by the dynamic loadings are often combined to corrosion issues linked to the presence of CO2 and H2S. In case of sour service application, the structural layers of a classical flexible pipe require the use of steel with reduced mechanical properties compared to a sweet service application. The combination of UDW and sour service applications consequently lead to a riser design of considerable top tension. The main challenges of such applications are the suspended weight and the fatigue / corrosion performances. Carbon fiber composite have demonstrated high specific strength and outstanding corrosion and fatigue damage resistance. The use of carbon fiber composite instead of conventional steel for the tensile armour layers of flexible pipes represents a great alternative for the development of UDW applications combined with sour service conditions. Technip has been engaged for a number of years in the development and qualification program of Carbon Fiber Composite (CFC) Armour. In 2011, an important step has been passed with the successful realization of a full-scale tension-flexion dynamic test. The program of the full-scale dynamic test is based on a representative Brazilian offshore project, a typical UDW application. The CFC prototype structure was designed considering a 9” gas export riser installed at a water depth of 2140m, in free hanging configuration. The riser is made of 2 parts: a top riser with CFC armours and a bottom riser with steel armours. 1.8 millions of cycles were performed without damage, combining internal pressure, tensile loading and bending cycling. The whole test was monitored by acoustic emission to detect the potential damage of the CFC armours. After explaining the advantages of CFC structures compared to traditional steel structures, the paper will focus on the realization of the full-scale dynamic test program. It will detail the design and manufacture of the prototype structure, the construction of the test program representative of the offshore conditions first and then extended to more severe loadings. The paper will also present fatigue analysis and the construction of the CFC fatigue curves.
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Rytter, Jan. "Qualification Approach to Unbonded Flexible Pipes With Fibre Reinforced Armour Layer." In ASME 2004 23rd International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2004. http://dx.doi.org/10.1115/omae2004-51175.

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The future water depth capabilities for unbonded flexible pipes is being pushed by NKT Flexibles I/S through the development of an innovative flexible pipe structure, taking full advantage of the material characteristics of metallic, polymeric and fibre reinforced materials. The fluid tight liner and possible insulation of this pipe structure are supported by an inner armour, capable of carrying the external hydrostatic pressure, clamp and crushing loads, as well as axial compression load, and an outer armour, consisting of two cross wound layers of carbon/epoxy composites, carrying the internal pressure as well as end cap forces and applied tension. A permeable and radially flexible outer layer protects the composite armour. Combining known and well-proven flexible pipe technologies and new solutions for materials, structure and functionality of the flexible pipe, positions this future product outside the present industry standards for flexible pipes, e.g. API-17J. The analysis tools used for the conventional flexible pipes are validated by NKT according to the API-17J specification. The API-17J describes load cases and corresponding allowable utilization ratios, stated as design criteria. However, this approach is not directly applicable to the composite pipe, where the same analysis tools will be used, but the material in one of the two primary load bearing layers is made of fibre reinforced polymer, a material class not covered by the API allowable utilization factors. The DNV offshore standard DNV-OS-C501 considers any offshore structure in which the load bearing material is a composite. An accompanying Recommended Practice DNV-RP-F202 for composite risers has also been issued, but is not applicable to the composite flexible pipe. The design equations of the DNV standard are formulated in the so-called Load and Resistance Factor Design (LRFD) format, where partial safety factors are applied to the load effects and to the resistance variables that enter the design equations. The DNV standard DNV-OS-C501 covers composite materials and composite metal interfaces of a structure, metal parts should be designed according to other relevant standards. The API standard can therefore be used for the metal parts. One of the challenges in using this combined approach is the different ways loads are defined in the two standards. In short, this will result in a conventional API design check of the inner armour, the polymer layers, and the secondary layers, whereas the composite tensile armour, special intermediate layers and the interfaces will be analyzed with composite specific tools based on the criteria derived from the DNV standard. The qualification procedure is described and exemplified in the following.
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NOORMOHAMMED, SALEEMA, CHUN LI, GENEVIÈVE TOUSSAINT, and JOSHUA ILSE. "New Generation Surface Treatment Techniques for Enhanced Adhesively Bonded Ceramic-Based Composite Armour Systems." In 31st International Symposium on Ballistics. DEStech Publications, Inc., 2019. http://dx.doi.org/10.12783/ballistics2019/33294.

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Nguyen, Long H., Shannon Ryan, Adrian C. Orifici, and Stephen J. Cimpoeru. "A penetration model for semi-infinite ultra-high molecular weight polyethylene composite." In 2019 15th Hypervelocity Impact Symposium. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/hvis2019-046.

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Abstract Ultra-high molecular weight polyethylene (UHMW-PE) composite has been shown to be an effective material for ballistic protection against blunt penetrators [1]. The material exhibits multiple stages of penetration, typically characterised by an initial local penetration phase followed by large bulge deformation of the back face [2]. The location at which transition occurs between the localised penetration stage and non-localised bulging stage is an important property of UHMW-PE composite armour. However, the conditions required to induce transition are poorly understood with a range of different mechanisms proposed to explain the behaviour [2,3], none of which can be used to predict the transition location within the target.
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Reports on the topic "Composite armour"

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Strutt, E. R., E. A. Olevsky, and M. A. Meyers. Resilient Composites for Armor Applications. Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada392043.

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Sloan, James M., Seth R. Ghiorse, Donovan Harris, and Gumersindo Rodriguez. Characterization of a Polymer Composite Section of Foreign Armor. Defense Technical Information Center, 2000. http://dx.doi.org/10.21236/ada374886.

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Fink, Bruce K., Travis A. Bogetti, Bazle Gama, John W. Gillespie, Yu Jr., and Chin-Jye. Application of Aluminum Foam for Stress-Wave Management in Lightweight Composite Integral Armor. Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada393590.

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Mackiewicz, James F., and Gary Proulx. Effect of Fiber-Reinforced Plastic Strength Properties on the Ballistic Performance of Ceramic Composite Armor. Defense Technical Information Center, 1998. http://dx.doi.org/10.21236/ada415841.

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