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Microstructural Effects on Fracture Scaling in Concrete, Rock and Ice

  • Jan G. M. van Mier
Part of the Solid Mechanics and Its Applications book series (SMIA, volume 94)

Abstract

Concrete, rock and ice are brittle disordered materials. Materials belonging to either of these classes display small-scale heterogeneity at the level of the material micro- and/or meso-structure, but also a large-scale heterogeneity at the level of the structure in which the material appears. The interplay between crack growth at the small-scale and large-scale heterogeneity leads to distinct size/scale effects in fracture. The determination of the two transition scales at which the macro-scale heterogeneity takes over from the micro-scale heterogeneity and where the macro-scale heterogeneity loses its importance is crucial for an understanding of size/scale effects. Both transitions are important to decide where continuum models could be applied to come to predictive extrapolation from laboratory scale experiments. Furthermore such knowledge is essential to design a reliable standard test for the determination of fracture parameters. Issues related to fracture of geo-materials are debated in the paper for mode I fracture only.

Keywords

Fracture Energy Crack Opening Displacement Transition Scale Wing Crack Crack Arrest 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 2001

Authors and Affiliations

  • Jan G. M. van Mier
    • 1
  1. 1.Faculty of Civil Engineering and GeosciencesDelft University of TechnologyDelftThe Netherlands

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