Browsing by Author "O'Keeffe, Niall"

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  • Experimental exploration of fluid-driven cracks in brittle hydrogels 

    O'Keeffe, Niall; Huppert, HE; Linden, Paul Frederick (Cambridge University PressJournal of Fluid Mechanics, 2018-06-10)
    Hydraulic fracturing is a procedure by which a fracture is initiated and propagates due to pressure (hydraulic loading) applied by a fluid introduced inside the fracture. In this study we focus on a crack driven by an ...

  • Hydrogel as a Medium for Fluid-Driven Fracture Study 

    O'Keeffe, Niall; Linden, Paul Frederick
    In this paper we describe how to construct polyacrylamide hydrogels to study the processes linked with hydraulic fracturing. These transparent, linearly elastic and brittle gels permit fracturing at low pressures and speeds ...