Aerospace

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https://dspace.lib.cranfield.ac.uk/handle/1826/20713

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Browsing Aerospace by Subject "'Aerospace Structures'"

Now showing 1 - 4 of 4
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    Conceptual and preliminary design methods for use on conventional and blended wing body airliners
    (Cranfield University, 2019-02-19 11:40) Smith, Howard; Fielding, John
    Transcript of John Fielding and Howard Smith's 1999 lecture to Court, Cranfield University.
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    ItemOpen Access
    Data supporting: 'Ground Vibration Testing of a Flexible Wing: A Benchmark and Case Study'
    (Cranfield University, 2023-05-04 16:22) Dessena, Gabriele
    This CORD entry contains the experimental data underlying the journal article Ground Vibration Testing of a Flexible Wing: A Benchmark and Case Study published in Aerospace by MDPI. The document XB-2_Dataset.pdf serves as the explanatory note for the data contained in data_xb2.mat
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    ItemOpen Access
    pseudocode.pdf
    (Cranfield University, 2020-10-08 15:30) Crescenti, Fabio
    This pseudocode contains information useful to reproduce the results presented in the journal paper: Generating minimal Pareto sets in multi-objective topologyoptimisation: an application to the wing box structural layout.
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    ItemOpen Access
    Pulsed and Vibro Thermographic results
    (Cranfield University, 2020-01-20 08:58) Deane, Shakeb; Ibarra-Castanedo, Clemente; Avdelidis, Nico; Tsourdos, Antonios; Zhang, Hai; P. V. Maldague, Xavier; Williamson, Alex; MacKley, Timothy; Yazdani Nezhad, Hamed; Davis, Maxwell
    The CFRP specimens were manufactured and purposely damaged via impact, in the Cranfield composite centre. Sample A4 was manufactured via manual woven, and the other twosamples were unidirectional. The composites consist of laying up pre-pregpiles to form a laminate stack, the material is then autoclave processed at 180oCand 7 bars for a few hours suitable for the thermoset resin cure, this isaccording to the supplier’s specification (Hexcel). There were three specimens,one that was undamaged, and two that had been impacted with a force of 15 and20 J of energy. The infrared camera used in this experiment was a FLIR Phoenix,with inSb sensor material, 3-5 mm, 640x512 pixels and allows data acquisitionat 50Hz. Thesurface of the specimens were positioned parallel to the camera lens. The data was acquired for 40 seconds with a 1.5millisecond integration time, that includes 10 frames before the flashes, plus1990 frames during cooling a total of 2000 frames where recorded. The softwareused to acquire the data was RDac from FLIR. For signal processing MATLAB andIr_view from Visiooimage inc were employed. Two advanced processing techniqueswere used; PCT (principal component thermography) and PPT (pulsed phasethermography).