Defence and Security

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    20230805-Crater Details FINAL.xlsx
    (Cranfield University, 2024-01-29 10:23) Collett, Gareth
    This data set compares surface explosions for spherical and hexahedral charges in alluvial soil.
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    A Review of Erosive Burning Models for Solid Propellant Rocket Motors (Spreadsheet)
    (Cranfield University, 2021-07-27 10:13) Macêdo-Gonçalves, Daniel
    This spreadsheet, an integral part of the thesis "A Review of Erosive Burning Models for Solid Propellant Rocket Motors" (Guided Weapon Systems MSc, 2020/2021), presents a useful tool in modelling the erosive burning rate of composite and double-base propellants, from modifications to the theoretical model originally proposed by Paul and Mukunda (1997).
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    A1 Presentation NC Symposium Bergerac v.2.1 A Moran.pdf
    (Cranfield University, 2023-06-30 11:49) Gill, Philip
    Presentation from 8th Nitrocellulose Symposium UNIVERSAL CALIBRATION FOR GPC OF NITROCELLULOSE A Moran - MAXAM
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    A2 Chaveroux_Eurenco_NIRS for the quality control of FCCC-2.pdf
    (Cranfield University, 2023-06-30 11:43) Gill, Philip
    NEAR INFRARED SPECTROSCOPY FOR THE QUALITY CONTROL OF FELTING COMBUSTIBLE CARTRIDGE CASES D . C H AV E R O U X , E U R E N C O
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    A3 SYMPOSIUM BERGERAC VISCOSITÉ TYPE F (DP) Manuco.pdf
    (Cranfield University, 2023-06-30 11:39) Gill, Philip
    SEC (Size Exclusion Chromatography) correlation viscosity= f (DP) Claude GUILLAUME MANUCO
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    A4 Halford - Oscillatory rheology of plasticised NC - NC symposium 2018.pdf
    (Cranfield University, 2023-06-30 11:37) Gill, Philip
    Oscillatory rheology of plasticised nitrocellulose binder formulations Adam Halford, AWE
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    A6 NC mmd by GPC and CHN at AWE N Barnett.pdf
    (Cranfield University, 2023-06-30 11:45) Gill, Philip
    Progress toward reliable NC molecular mass distribution by GPC, plus a small introduction to CHN Nicola Barnett - AWE
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    A7 NC Symp 2018 _ Status of NATO Standard for NC Testing _ Pres Vogelsanger et al.pdf
    (Cranfield University, 2023-06-30 11:48) Gill, Philip
    Status of NATO-Standard for Nitrocellulose Testing (STANAG/AOP 4178) Beat Vogelsanger, Michael Ramin, Marc Müller, Patrick Folly Rheinmetal, Nitrochemie
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    Age-related trends in the trabecular micro-architecture of the medial clavicle: Is it of use in forensic science?
    (Cranfield University, 2020-01-21 15:02) McGivern, Hannah; Greenwood, Charlene; Marquez-Grant, Nicholas; F. Kranioti, Elena; Zioupos, Peter
    The mechanical and structural properties of bone are known to change significantly with age. Within forensic and archaeological investigations, the medial end of the clavicle is typically used for estimating the age-at-death of an unknown individual. Although, this region of the skeleton is of interest to forensic and clinical domains, alterations beyond the macro-scale have not been fully explored. For this study, non-destructive micro-computed tomography (µ-CT) was employed to characterise structural alterations to the cancellous bone of the medial clavicle. Fresh human cadaveric specimens (12-59 years) obtained at autopsy were utilised for this study, and were scanned with a voxel size of ~83µm. Morphometric properties were quantified and indicated that the bone volume, connectivity, mineral density and number of trabeculae decreased with age, while the spacing between the trabeculae increased with age. In contrast to other sub-regions of the skeleton, trabecular thickness and degree of anisotropy did not correlate with age, which could suggest that the network is becoming increasing perforated with age rather than exhibiting trabecular thinning. These results are used in the context of deriving a potential protocol for forensic investigations by using this particular and largely unexplored region of the skeleton and provide inspiration for future experiments concerning micro-architectural and small scale changes in other regions of the human skeleton.
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    Airworthiness and No Fault Found
    (Cranfield University, 2022-12-14 09:56) Lacey, Laura
    Excel spreadsheet with the results from a questionnaire aimed at aircrew on their experience and knowledge of no fault found and its impact on airworthiness.
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    Andrew Claydon PhD
    (Cranfield University, 2020-11-27 10:15) Gill, Philip; Claydon, Andrew; Gaulter, Sally; Kister, Guillaume
    Current Polymer Bonded Explosive (PBX) formulation is limited by a compromise - optimised final properties against processability. While explosive content would ideally be maximised and plasticiser content ideally minimised, the formulation would become too viscous to cast and require arduous mixing processes using conventional techniques. However, with Resonant Acoustic Mixing (RAM), formulation does not have to be constrained. Instead of mixing blades, mixing is achieved using an oscillating platform to impart acoustic pressure waves (vibrations) into the mixture. Mixing is orders of magnitude faster than conventionally achievable, and the added ability to mix in the end use casing (mixing ‘in-situ’) also renders casting obsolete in many scenarios. The research aim of the PhD is to assess how machine control and vessel design can be altered to optimise the mixing mechanism and compare material properties of composites mixed ‘in-situ’ and ‘mixed and cast’.
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    Appendices for PhD Thesis Titled "EXPLORING THE IMPACT OF FUNCTIONALISATION ON CO CRYSTALLISATION OF N-HETEROCYCLES"
    (Cranfield University, 2021-04-12 09:18) O'connor, Colum
    Appendices for PhD thesis titled "Exploring the impact of functionalisation on co-crystallisation of N-heterocycles"
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    Assessment of HEFA, ATJ, GTL-S8 and Farnesane as alternative jet fuels based on their water shedding characteristics
    (Cranfield University, 2022-06-24 10:09) Ugbeh, Judith
    Previous studies have shown that impurities like surfactants in jet fuel have impacted the performance of coalescer filters. Therefore, aircraft maintenance schedules require an additional operation which is commonly known as water sumping. Normally after bulk fuel transfers, fuels are allowed to settle in tanks and sumping is carried out to remove free water. Water settling tests can indirectly measure surfactants in jet fuels, yet there is no reliable data that focuses on the water settling rate of alternative jet fuels that comply with or are very similar to the Jet A-1 specification. Additionally, the influence of the jet fuel composition on the rate of water-shedding is still unknown. Therefore, there is a need for a reliable study to fill this lack of knowledge. In this work, the water settling rate of five different jet fuels made to different national standards in comparison to conventional Jet A-1 fuel was evaluated. GTL S-8, HEFA and ATJ has been identified as potential/alternative candidates for ASTM D7566 certified jet fuels.
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    B2 Harry Hope - NC Symposium Presentation (Final).pdf
    (Cranfield University, 2023-06-30 11:45) Gill, Philip
    Evaluation of a ‘Stabiliser Cocktail’ for a plasticised Nitrocellulose Polymer Bonded Explosive Harry Hope - AWE
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    B3 NC Symp 2018 - Stability Testing of Nitrocellulose - Ramin et al.pdf
    (Cranfield University, 2023-06-30 11:37) Gill, Philip
    Stability Testing of Nitrocellulose Michael Ramin, Beat Vogelsanger, Marc Müller, Beate Pausc Rheinmetal, Nitrochemie
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    b4 2018.06.02 “8.12”Tianjin Explosion and Industrial NC.pdf
    (Cranfield University, 2023-06-30 11:39) Gill, Philip
    “8.12”Tianjin Explosion and Industrial NC Peng Huan Sichuan Nitrocell Corp. P.R. of China
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    B7 Matt Parker NC symposium presentation Cranfield university.pdf
    (Cranfield University, 2023-06-30 11:48) Gill, Philip
    Chemiluminescence: Investigating the thermo-chemical decomposition mechanism of nitrocellulose Matt Parker, Cranfield University
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    B8 2018_VECEREK.pdf
    (Cranfield University, 2023-06-30 11:40) Gill, Philip
    STUDY OF NITROCELLULOSE SELF-IGNITION TEMPERATURE Petra L-oudová, Jiří Schejbal, Jaroslav Štěpán, Oldřich Večerek - SYNTHESIA, a. s. - Czech Republic
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    Bayesian Network Probability tables for Thumbnail Cache Identification
    (Cranfield University, 2018-03-07 09:46) Morris, Sarah
    Bayesian Network and Probability tables for Identatron. These are used for cluster sized thumbnail cache file fragment identification.
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    Bohn NC-Symposium 2023 VoKo .pdf
    (Cranfield University, 2023-07-05 16:57) Gill, Philip
    Towards a comprehensive understanding of the decomposition of nitrocellulose Manfred Bohn - Fraunhofer - ICT 9th International Nitrocellulose Symposium Presentation