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Fracture Modelling of Granular Materials

Published online by Cambridge University Press:  26 February 2011

E. Schlangen  and
J.G.M. Van Mier
E. Schlangen
Affiliation:
Delft University of Technology, Stevin LaboratoryP.O. Box 5048, 2600 GA Delft, The Netherlands
J.G.M. Van Mier
Affiliation:
Delft University of Technology, Stevin LaboratoryP.O. Box 5048, 2600 GA Delft, The Netherlands
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Abstract

A lattice type model is used for simulating fracture processes in concrete and sandstone. Two type of lattices were adopted: a regular triangular lattice and a random lattice. With both lattices the fracture process in four point shear specimens can be simulated. The results are in good agreement with experimental observations. With the regular lattice, where disorder is implemented via a generated grain structure, the typical failure mechanism for granular materials, crack face bridging, is retrieved. With the random lattice, these details cannot be simulated, but the macroscopic crack pattern is obtained correctly with an enormous decrease in the number of elements.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 278: Symposium W – Computational Methods in Materials Science , 1992 , 153
Copyright
Copyright © Materials Research Society 1992

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