International Journal of Fracture

, Volume 154, Issue 1–2, pp 61–72 | Cite as

Size effect on strength and fracture energy for numerical concrete with realistic aggregate shapes

  • Hau-Kit Man
  • Jan G. M. van Mier
Original Paper


Fracture of concrete at the scale of the aggregate structure (or smaller) is a complicated process. Simple simulation models may be of help in understanding fracture in more detail, provided that the material structure is incorporated in as much detail as possible. A combined approach using computed tomography and image processing allows us to model concrete close to reality. The shape of the aggregates is included in a 3D beam lattice model for fracture. Fracture of concrete beams is simulated under 3-point bending with different sizes, aggregate densities and aggregates shapes, focusing on the size effect on structural strength and fracture energy.


Computed tomography Aggregate structure Oval-shaped aggregates Crushed aggregates Numerical concrete 3D lattice model 


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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  1. 1.Department of Civil, Environmental and Geomatic Engineering (D-BAUG), Institute for Building MaterialsETH ZurichZurichSwitzerland

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