Browsing by Author "Webb, J."

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    The measurement of biaxial strains in coated fabric materials using the disc-replica method
    (College of Aeronautics, 1969-09) Webb, J.; Richards, D. M.
    A method of measuring biaxial strains in coated fabric type materials is presented whereby the strain is deduced from the distortion of a circular impression made on the material. The impression is placed on the material when loaded, enabling all measurements to be made with the material in its relaxed, unloaded, state.
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    Optimum stiffness inflated mattress beams
    (College of Aeronautics, 1969-09) Webb, J.
    This report considers primarily the relatively short cantilever type of inflated matresss beam, currently being employed as sidebody structure on some hovercraft. The rib pitch for optimum stiffness/weight of such beams is determined, and it is shown that thin ribs, closely pitched, with relatively thick skins provide the most efficient structures.