Дисертації з теми "Explosives materials"
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся з топ-50 дисертацій для дослідження на тему "Explosives materials".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Переглядайте дисертації для різних дисциплін та оформлюйте правильно вашу бібліографію.
Dean, Rachel. "Forensic applications of fragmentation of materials by explosives." Thesis, Cranfield University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.422190.
Повний текст джерелаGupta, Sakshi. "Investigation on the enhancement of raman signal and fluorescent organic materials for explosives detection." Thesis, IIT Delhi, 2016. http://localhost:8080/iit/handle/2074/7022.
Повний текст джерелаFrota, Octávia. "Development of a low cost cook-off test for assessing the hazard of explosives." Thesis, Cranfield University, 2015. http://dspace.lib.cranfield.ac.uk/handle/1826/9323.
Повний текст джерелаReding, Derek James. "Shock induced chemical reactions in energetic structural materials." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28174.
Повний текст джерелаCommittee Chair: Hanagud, Sathya; Committee Member: Kardomateas, George; Committee Member: McDowell, David; Committee Member: Ruzzene, Massimo; Committee Member: Thadhani, Naresh.
Thomas, Samuel William III. "Molecules and materials for the optical detection of explosives and toxic chemicals." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/36260.
Повний текст джерелаVita.
Includes bibliographical references.
Optical chemosensing, especially using amplifying fluorescent polymers, can allow for the highly sensitive and selective vapor-phase detection of both explosives and highly toxic chemicals, including chemical warfare agents. There are varieties of analyte targets, however, that remain challenging for detection by these methods. Research towards improving this technology has obvious implications for homeland security and soldier survivability. This dissertation details the development of new molecules, materials, and transduction schemes aimed at improving both the versatility and sensitivity of optical chemical detection. Chapter One provides an introduction to the field of fluorescent polymer sensors, principally focusing on their utility in the detection of nitroaromatic explosives. Brief descriptions of other analytical methods used for explosives detection are also included. Chapter Two describes the synthesis and optical properties of a new class of conjugated polymers that contain alkyl-amino groups directly bound to the arene rings of poly(phenylene ethynylene)s and poly(fluorene)s. These materials displayed red-shifted absorption and emission spectra, large Stokes Shifts, as well as long excited state lifetimes.
(cont.) Also described is the use of films of these readily oxidized polymers in the vapor-phase detection of hydrazine down to a concentration of 100 parts-per-billion. This new scheme for the detection of hydrazine vapor relies on the analyte's reduction of oxidized traps ("unquenching") within the polymer film to give a fluorescence "turn-on" signal. Chapter Three begins with an introduction to the various classes of explosive molecules, as well as to the concept of "tagging" plastic explosives with higher vapor pressure dopants in order to make them easier to detect. This is followed by a description of how the taggant DMNB was successfully detected using high band-gap poly(fluorene)s. The higher energy conduction bands of these materials allowed for exergonic electron transfer to DMNB and fluorescence quenching in both the solution and solid states. Phosphorescence is the theme of Chapter Four, in which two research projects based on highly phosphorescent cyclometalated Pt(II) complexes are summarized. This includes the synthesis and optical characterization of a phosphorescent poly(fluorene), one of the repeat units of which is a Pt(ppy)(acac)-type complex. Comparisons of its intrinsic photophysical properties and oxygen-induced quenching behavior to model compounds are also summarized.
(cont.) Chapter Four also details investigations into using oxidative addition reactions of new bis-cyclometalated Pt(II) complexes for the dark-field turn-on chemical detection of cyanogen halides. Incorporating substituents on the ligands that force steric crowding in the square plane accelerated the addition of cyanogen bromide to these complexes, which also correlated with the room-temperature phosphorescence efficiency of these complexes. Exposure of polymer films doped with these complexes gave a dark-field turn on signal to the blue of the reactant that corresponded to the phosphorescence of the Pt(IV) oxidative addition product. Finally, Chapter Five focuses on iptycenes, a very useful structural moiety in the field of optical chemosensing. The development of an improved synthetic procedure for the preparation of the iptycene group is described. This procedure has been showed to be effective in the preparation of a series of new iptycene-containing molecules, including a poly(iptycene). To conclude, the unique counter-aspect ratio alignment behavior of a poly(iptycene) in a stretch-aligned polymer film is summarized. This is rationalized by a "threading" model, in which the chains of the poly(vinyl chloride) matrix occupy the internal-free-volume defined by the poly(iptycene).
by Samuel William Thomas, III.
Ph.D.
Collins, Adam Leigh. "Environmentally responsible energetic materials for use in training ammunition." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610529.
Повний текст джерелаWang, Guangyu. "An MD-SPH Coupled Method for the Simulation of Reactive Energetic Materials." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1491559185266293.
Повний текст джерелаAronson, Joshua Boyer. "The Synthesis and Characterization of Energetic Materials From Sodium Azide." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/7597.
Повний текст джерелаSalinas, Soler Yolanda. "Functional hybrid materials for the optical recognition of nitroaromatic explosives involving supramolecular interactions." Doctoral thesis, Editorial Universitat Politècnica de València, 2013. http://hdl.handle.net/10251/31663.
Повний текст джерелаSalinas Soler, Y. (2013). Functional hybrid materials for the optical recognition of nitroaromatic explosives involving supramolecular interactions [Tesis doctoral]. Editorial Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/31663
Alfresco
Premiado
Conroy, Michael W. "Density Functional Theory Studies of Energetic Materials." Scholar Commons, 2009. http://scholarcommons.usf.edu/etd/3691.
Повний текст джерелаLanderville, Aaron Christopher. "First-principles studies of shock-induced phenomena in energetic materials." [Tampa, Fla] : University of South Florida, 2009. http://purl.fcla.edu/usf/dc/et/SFE0002902.
Повний текст джерелаDoblas, Jiménez David. "Exploration and detection of ultra-traces of explosives by chip calorimetry." Thesis, Strasbourg, 2015. http://www.theses.fr/2015STRAE017/document.
Повний текст джерелаBeing able to sense the minuscule amounts of energetic materials is crucial in the context of the fight against terrorism. Apart from the methods of detection of EM, which are specific to the chemical structure, one could use the enthalpy variations of the EM decomposition process for their detection by means of thermal analysis. However, the sensitivity of classical methods would be still insufficient to sense particles in the nanogram range. By contrast, the recently developed technique of chip calorimetry is perfectly suited for characterizing small amounts of samples and is therefore fully adequate for this task.In order to explore the possibilities of detection and identification of solid micro-particles of EM with thermal analysis, we discuss on the protocols optimized for the detection and identification of nanogram-size particles of EM and its mixtures with the chip calorimeter accessory. The results obtained on pure EM and its mixtures show that the detection threshold can be put at approximately several hundred picograms. The experiments were completed by the in-situ structural analysis using a combination with nanofocus synchrotron XRD
Aydelotte, Brady Barrus. "Fragmentation and reaction of structural energetic materials." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50253.
Повний текст джерелаJiba, Zetu. "Coating processes towards selective laser sintering of energetic material composites." Diss., University of Pretoria, 2019. http://hdl.handle.net/2263/79246.
Повний текст джерелаDissertation (MSc)--University of Pretoria, 2019.
Chemical Technology
MSc
Unrestricted
Palacios, Manuel A. "Materials and Strategies in Optical Chemical Sensing." Bowling Green State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1225902887.
Повний текст джерелаBen, Jaber Sultan Saeed. "Development of nanostructures materials for detection of ultra-trace levels of explosives based on Surface-Enhanced Raman Spectroscopy (SERS)." Thesis, University College London (University of London), 2017. http://discovery.ucl.ac.uk/10040377/.
Повний текст джерелаWhite, Bradley William. "Microstructure and strain rate effects on the mechanical behavior of particle reinforced epoxy-based reactive materials." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42801.
Повний текст джерелаNarayanan, Vindhya. "Non-equilibrium Thermomechanics of Multifunctional Energetic Structural Materials." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7570.
Повний текст джерелаBudzevich, Mikalai. "Atomistic Studies of Shock-Wave and Detonation Phenomena in Energetic Materials." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3717.
Повний текст джерелаDursun, Hayrettin. "Determination Of The Postexplosion Residues Of Nitro Group Containing Explosives In Soil With Gc-ms And Gc-tea." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/2/12609014/index.pdf.
Повний текст джерелаresidues used in bombing attacks are optimized with the standard solutions of 2,4,6-Trinitrotoluene (TNT) and 1,3,5-trinitro-1,3,5-triazocyclohexane (RDX) and standard mixture solution. The two methods were compared by analysing the postexplosion soil samples. Also an efficient and applicable sample preparation procedure was developed. The results showed that both methods are efficient and sensitive for the postexplosion investigations. It is seen that GC-TEA has lower detection limit and simple chromatograms due to its selectivity against only nitro group containing explosives. However it is concluded that there is a need for a reliable and sensitive method like GC-MS which provides identification and library search, for the determination of the organic components which can not be identified with GC-TEA
Walker, Jeremy D. "Exploring the Synthesis and Characterization of Nanoenergetic Materials from Sol-Gel Chemistry." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14573.
Повний текст джерелаLloyd, Hayleigh Jayne. "Co-crystallisation of energetic materials : a step-change in the control of properties and performance of munitions." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/28860.
Повний текст джерелаRieger, Max [Verfasser], Klaus [Gutachter] Müller-Buschbaum, and Robert [Gutachter] Luxenhofer. "Preconcentration with Metal-Organic Frameworks as adsorbents for airborne Explosives and Hazardous Materials - A study using inverse gas chromatography / Max Rieger ; Gutachter: Klaus Müller-Buschbaum, Robert Luxenhofer." Würzburg : Universität Würzburg, 2019. http://d-nb.info/1180286693/34.
Повний текст джерелаTucker, Michael D. "Characterization of impact initiation of reactions in aluminum-based, intermetallic-forming reactive materials." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42754.
Повний текст джерелаKirchhof, Edemar. "Estimativa de vida útil de explosivo PBX (Plastc Bonded Explosive) no envelhecimento acelerado." Instituto Tecnológico de Aeronáutica, 2014. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=3135.
Повний текст джерелаTaylor, M. J. "Plasma propellant interactions in an electrothermal-chemical gun." Thesis, Department of Environmental and Ordnance Systems, 2009. http://hdl.handle.net/1826/4010.
Повний текст джерелаTaylor, Michael J. "Plasma propellant interactions in an electrothermal-chemical gun." Thesis, Cranfield University, 2002. http://dspace.lib.cranfield.ac.uk/handle/1826/4010.
Повний текст джерелаTsang, Sideny C. N. "Processing and rheological studies of cellulosic materials." Thesis, Sheffield Hallam University, 1987. http://shura.shu.ac.uk/20456/.
Повний текст джерелаCelik, Bayar Caglar. "Theoretical Investigation Of Tautomeric Equilibria In Certain Explosive Materials." Phd thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12615630/index.pdf.
Повний текст джерелаknown explosives to improve their detonation performances (heats of explosion, detonation velocities and detonation pressures) and thermal stabilities and decrease their sensitivities towards friction, electric spark, shock and impact either experimentally or theoretically. NTO (5&ndash
nitro&ndash
2,4&ndash
dihydro&ndash
3H&ndash
1,2,4&ndash
triazol&ndash
3&ndash
one) and PATO (3&ndash
picrylamino&ndash
1,2,4&ndash
triazole) are very important secondary explosives that take place in the literature for many years in terms of their explosive properties. In this thesis study, new species of these explosives have been designed to enhance their detonation performances (ballistic properties) and to lower their sensitivities and reactivities computationally. Additionally, aromatic nitration reactions and their mechanisms for unprotonated and protonated PATO species have been analyzed. The ab initio quantum chemistry methods, Hartree&ndash
Fock (HF) and Density Functional Theory (DFT), have been used in the calculations with Pople basis sets. Novel NTO and PATO tautomeric species have been designed and investigated to enlighten the effects of tautomerism on their quantum chemical properties and detonation performances in the gas phase. Various aromatic nitration mechanisms (carbon and nitrogen mono&ndash
nitration mechanisms) of unprotonated tautomeric PATO species as well as PATO have been designed in gas phase and the reaction states (pre&ndash
transition states, transition states, intermediates and nitration products) have been detected belonging to these mechanisms. Nitrations in solution phase have also been analyzed. The reaction states have been detected for carbon and nitrogen mono&ndash
nitrations of protonated PATO species in the gas phase. The detonation performances of unnitrated and nitrated PATO products have been presented.
Liu, Yen-Shan. "Development of an advanced nanocalorimetry system for rapid material characterizations." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4834.
Повний текст джерелаClevenger, Lawrence Alfred. "Controlled and explosive silicidation of metal/amorphous-silicon multilayer thin films." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/14210.
Повний текст джерелаQuihuis, Nicholas R. "Stemming the Flow of Improvised Explosive Device Making Materials through Global Export Control Regimes." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/17444.
Повний текст джерелаThe effects of Improvised Explosive Devices (IEDs) continue to be felt throughout the world, and especially in battlefields, such as Afghanistan. The United States currently leads the counter-IED effort through various demand side efforts, such as those led by JIEDDO and Project Global Shield. The purpose of this thesis was to determine the feasibility of a new supply-side effort to counter IEDs through global export control similar to the multilateral export control regimes of Weapons of Mass Destruction (WMD) and missile technologies. A comparative method was used that utilized the existing regime literature for success and effectiveness, and then measured those regimes against six variables that focused on technology, as well as the organizations, which provided the framework to determine the success and feasibility of a new regime that focuses on lower technology items. The results show that although IEDs continue to be a presence throughout the world, it lacks the grander threat similar to that of WMD technology to make a new regime successful. Further, the results show that IED technology and material are difficult to classify and track, which makes global export control efforts extremely difficult.
Johansson, Susanna. "Mer än fyrverkeri : Att informera gymnasieungdomar om explosiva och energetiska material." Thesis, Mälardalen University, School of Innovation, Design and Engineering, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-10078.
Повний текст джерелаDetta examensarbete utreder hur information kan anpassas textuellt och formges efter en specifik målgrupp. Informationen behandlar explosiva och energetiska material, var de används och av vilka, och hur hanteringen sker säkert. Arbetsprocessen har innefattat metoder för textanalys, fokusgrupp och jämställt språk och har lett fram till ett designförslag. De texter som har analyserats har dels varit tagna från examensarbetets samarbetspartner, KCEM, och dels tagna från andra branscher som genom målgruppsanpassat material informerar om sina möjligheter. En fokusgrupp sattes samman av ett representativt urval av målgruppen. Under ett strukturerat gruppmöte fick de kommentera informationsmaterial som riktar sig till dem som homogen grupp. Informationen har anpassats för hela målgruppen genom att tillämpa en metod för jämställt språk. De teorier som sedan använts för att anpassa slutprodukten textuellt och grafiskt är pragmatisk textlingvistik, metadiskurs och visuell metadiskurs. Den pragmatiska textlingvistiken har bidragit med en helhetssyn på språk som ett verktyg för att överföra intentioner och budskap. Metadiskurs och visuell metadiskurs har sedan tillämpats för att överföra teorin till praktiken.
Hammond, Lloyd Charles 1961. "The structural response of submerged air-backed plates to underwater explosions." Monash University, Dept. of Civil Engineering, 2000. http://arrow.monash.edu.au/hdl/1959.1/9244.
Повний текст джерелаVera, Lino Gary Álvaro. "Propuesta de reducción del inventario de lento movimiento en una empresa de explosivos." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2013. http://hdl.handle.net/10757/273491.
Повний текст джерелаHildal, Kjetil. "Steam explosions during granulation of Si-rich alloys. : Effect of Al- and Ca-additions." Doctoral thesis, Norwegian University of Science and Technology, Faculty of Natural Sciences and Technology, 2002. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-52.
Повний текст джерелаSteam explosions are possible during granulation of Si and FeSi75. These explosions are a great hazard, and must be avoided. Norwegian ferroalloy producers have initiated a research program to learn more about such violent melt-water interactions, in a joint effort with NTNU and SINTEF. The focus has primarily been on important parameters that can be controlled industrially, such as water temperature and metal composition. This thesis-work has focused on the effect of small additions of Al and Ca in Si-metal and FeSi75. However, within the same project, experiments on the effect of water temperature have also been carried out.
The work has primarily been of experimental character. Two experimental apparatuses have been used. The first apparatus allows us to rapidly melt a sample of metal in an inert atmosphere to a desired temperature, expose the surface of the melt to an oxidizing agent (i.e. water) and then rapidly cool the sample to room temperature. The oxide that forms at the surface is examined with a microprobe. Thus, information regarding the composition and substance of the oxide layer is available. The second apparatus is suitable for releasing single drops of melt into a water tank, where they can be triggered and explode. A variety of techniques have been used in order to monitor the experiment: regular video, high-speed film, high-speed video, open-shutter imaging and pressure transducer measurements.
Both Si and FeSi75 must be triggered in order to explode. Trigger pressures range from 0.3 MPa (FeSi75) to 2 MPa (Si-metal). We have established at which depths the molten drops can be triggered. Molten drops of FeSi75 can be triggered at depths twice of those of molten drops of Si. The latter can be triggered even if they are partially solidified.
The explosion itself is strong enough to trigger neighbor drops as far away as 400 mm. Thus, we cannot rule out the possibility of large-scale steam explosions during granulation of molten Si or FeSi75, which is in accordance with industrial practice.
By the use of high-speed imaging techniques and pressure measurements, we have been able to describe qualitatively what happens when a molten drop of Si/FeSi75 fragments rapidly in water. As the melt fragments, the rapid heat transfer generates vapor as bubbles, which expand and collapse in a cyclic manner. Large pressure pulses are generated upon collapse of the steam bubble, that is, when water jets impact in the center of the collapsing bubble.
The first step in the oxidation of liquid silicon is the formation of gaseous SiO. The fate of this gas now depends on the flow conditions at the surface of the melt. In the case of a molten drop descending in water, most of the gas is flushed away from the surface. Thus, there are only minor traces of oxygencontaining material (i.e. silica) at the surface of the solidified drop.
The addition of small amounts of Al and/or Ca dramatically changes the behavior of the molten drop. A strange effect is the two-fold increase in the fall velocity for molten drops of silicon. A similar effect was detected for molten drops of FeSi75. Alloying elements such as Al and Ca greatly reduce the risk for a steam explosion of molten Si. The significance of these elements is related to the oxidation reactions at the surface of the molten drop of metal. As silicon reacts with water vapor and oxidizes, hydrogen gas is formed. If Al and Ca are present in the melt, these elements will speed up the hydrogen generation considerably. This gas is strongly influencing on the probability for a steam explosion to occur. H2 stabilizes the vapor film around the drop, that is, much stronger trigger pressures are needed to collapse the film. Even if the trigger pressure is strong enough to collapse the vapor film, violent interactions are almost completely absent. A fragmentation of the melt is observed, but the heat transfer is apparently not rapid enough to generate steam bubbles, i.e. the generation of steam is below the critical limit.
Flannigan, Matthew Brian. "Phytoremediation for the treatment of energetic material releases on testing and training ranges at Eglin Air Force Base." Thesis, University of Iowa, 2011. https://ir.uiowa.edu/etd/962.
Повний текст джерелаMuñoz, Estrada Vianett Berenice. "Characterization of n-type Bi₂Te₂.₇Se₀.₃ and p-type Bi₀.₅Sb₁.₅Te₃ ternary like semiconductors fabricated by shock-waved (explosive) consolidation." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2007. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.
Повний текст джерелаBreidenich, Jennifer L. "Impact-initiated combustion of aluminum." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54403.
Повний текст джерелаFarías, Cabrera Grace Liliam, and Vela Leonardo Francisco Chumbiauca. "Elaboración de un modelo estocástico para la atención de problemas en un Centro de atención de llamadas que brinda soporte a Tecnologías y Sistemas de Negocio." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas - UPC, 2013. http://hdl.handle.net/10757/273507.
Повний текст джерелаRosencrantz, Stephen D. "Characterization and Modeling Methodology of Polytetrafluoroethylene Based Reactive Materials for the Development of Parametric Models." Wright State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=wright1193425334.
Повний текст джерелаMazzeu, Maria Alice Carvalho. "Estudo da compatibilidade de RDX e HMX com polímeros e materiais inertes." Instituto Tecnológico de Aeronáutica, 2010. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=984.
Повний текст джерелаJunior, Paulo Roberto Leite. "Projeto óptico de espoleta de proximidade a laser para bombas de fins gerais e altímetro laser de curto alcance." Instituto Tecnológico de Aeronáutica, 2006. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=272.
Повний текст джерелаHamad, Baran, and Markus Englund. "Improved Release Mechanisms for Aerospace Applications." Thesis, Uppsala universitet, Tillämpad mekanik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-448399.
Повний текст джерелаHold down release-mekanismer (HDRM) används för att säkert kunna fästa samman delar av strukturer för att sedan kunna lossa dessa vid rätt tillfälle. När det transporteras känslig last på exempelvis rymdfarkoster uppkommer utmaningen att göra så på ett sätt som inte riskerar att skada den ofta dyra utrustningen. Det finns en mängd olika HDRM, dessa kan delas upp i två typer som är icke explosiva release-mekanismer och pyrotekniska release-mekanismer. Icke explosiva release-mekanismer har en fördel över pyrotekniska som är att de inte producerar potentiellt destruktiva chock-vågor som sprids genom strukturen. En typ av icke-explosiva release-mekanismer är den så kallade split spool-initieraren. Denna kan endast användas en gång när fästelementet är aktiverat och för att kunna använda fästelementet igen måste hela initieraren bytas ut. Syftet med denna studie har varit att att designa en förbättrad split spool-initierare som är återanvändbar, medan funktionaliteten hos den ursprungliga designen är bevarad. För att åstadkomma detta övervägdes olika idéer och slutligen valdes en lösning som använder minnesmetaller eller Shape memory alloys på engelska (SMA). En prototyp konstruerades för att demonstrera funktionaliteten hos designen. Simuleringar gjordes även för att bestämma krafter som agerade på split spool-strukturen och för att få en överblick över spänningsfördelningen genom initieraren.
Baker, Wade Andrew. "Development and Validation of a Finite Element Dummy Lower Limb Model for Under-body blast Applications." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/86657.
Повний текст джерелаMaster of Science
Kotyk, Maciej. "Analiza odporności na pękanie materiału warstwowego Al-Ti." Rozprawa doktorska, Uniwersytet Technologiczno-Przyrodniczy w Bydgoszczy, 2018. http://dlibra.utp.edu.pl/Content/1233.
Повний текст джерелаThe reason for the work is determination and analysis of selected mechanical properties of the new layer material AA2519-AA1050-Ti6AI4V and its base materials
Matthew, Christopher P. "Design studies for stand off bomb detection." Thesis, Manhattan, Kan. : Kansas State University, 2010. http://hdl.handle.net/2097/3752.
Повний текст джерелаCheng, Guanbing. "Contribution à l'étude de la Transition Déflagration Détonation (TDD) dans des Mélanges Gazeux Binaires H2/C3H8/Air." Phd thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2012. http://tel.archives-ouvertes.fr/tel-00740126.
Повний текст джерелаAvachat, Siddharth. "Experimental and numerical analyses of dynamic deformation and failure in marine structures subjected to underwater impulsive loads." Thesis, Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/44904.
Повний текст джерелаRisse, Benedikt. "Continuous crystallization of ultra-fine energetic particles by the Flash-Evaporation Process." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0144/document.
Повний текст джерелаHigh explosives, such as TNT or RDX, may be accidentally initiated under the influence of a strong mechanical impulse, great heat or an electrostatic discharge. Smallest impurities, open pores, entrapped gases or other inhomogeneities within the explosive matrix may convert the delivered energy into heat, causing the formation of a so called hot-spot. A hot-spot size of a few micrometers can already be sufficient to initiate a deflagration or even a detonation of the explosive. By decreasing the particle size of the explosive, the formation of hot-spots is inhibited, resulting in a less sensitive material. In this work, a continuous operating flash-crystallization process was developed, being able to produce energetic submicron particles in a multigram scale. The process bases on a spray drying process where superheated solutions are continuously atomized. A parametric study was performed on this process in order to decrease the particle size and obtaining a narrower particle size distribution. By means of this flash-crystallization process, highly homogeneous energetic composites were prepared in a large scale. The quality and amount of the energetic composite are unique. The versatility of the flash-crystallization process allows the preparation of a large number of energetic and inert substances and compositions