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7 Result(s)

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  1. No Access

    Article

    R-curve behavior and roughness development of fracture surfaces

    We investigate the idea that the fractal geometry of fracture surfaces in quasibrittle materials such as concrete, rock, wood and various composites can be linked to the toughening mechanisms. Recently, the co...

    Stéphane Morel, Elisabeth Bouchaud, Jean Schmittbuhl… in International Journal of Fracture (2002)

  2. No Access

    Article

    Influence of the specimen geometry on R-curve behavior and roughening of fracture surfaces

    Recently the R-curve behavior observed on quasi-brittle materials was proposed to be related to the roughness development of fracture surfaces. However, many experiments have shown that the R-curve behavior is no...

    Stéphane Morel, Guillaume Mourot, Jean Schmittbuhl in International Journal of Fracture (2003)

  3. No Access

    Article

    Scaling and dynamics of an interfacial crack front

    We report on in situ observations with a high speed CCD camera of an in-plane crack propagating through a transparent heterogeneous Plexiglas block. The toughness is controlled artificially and fluctuates spatial...

    Knut JØrgen MÅLØY, Jean SCHMITTBUHL, Alex HANSEN… in International Journal of Fracture (2003)

  4. No Access

    Article

    A self-affine geometrical model of dynamic RT-PMMA fractures: implications for fracture energy measurements

    Profilometric imaging of fracture surfaces of rubber toughened polymer has been performed at two different resolutions (a) at large scales [10  ...

    Jean-Benoit Kopp, Jean Schmittbuhl, Olivier Noel… in International Journal of Fracture (2015)

  5. No Access

    Article

    A Stochastic Study of Flow Anisotropy and Channelling in Open Rough Fractures

    The quantification of fluid flow in rough fractures is of high interest for reservoir engineering, especially for deep geothermal applications. Herein, rough self-affine fractures are stochastically generated ...

    Sophie Marchand, Olivier Mersch, Michael Selzer… in Rock Mechanics and Rock Engineering (2020)

  6. No Access

    Article

    Hydraulic Diffusivity of a Partially Open Rough Fracture

    We investigate the impact of closing a fracture with rough surfaces on the fracture hydraulic diffusivity, which controls the spatiotemporal evolution of pore-pressure perturbations in geological formations, p...

    Qinglin Deng, Guido Blöcher, Mauro Cacace… in Rock Mechanics and Rock Engineering (2021)

  7. Article

    Open Access

    Permeability Evolution During Shear Zone Initiation in Low-Porosity Rocks

    Using an innovative experimental set-up (Punch-Through Shear test), we initiated a shear zone (microfault) in Flechtingen sandstone and Odenwald granite under in situ reservoir conditions while monitoring perm...

    Christian Kluge, Guido Blöcher, Auke Barnhoorn… in Rock Mechanics and Rock Engineering (2021)

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