Dispersion and Localisation in a Strain–Softening Two–Phase Medium

Part of the Computational Methods in Applied Sciences book series (COMPUTMETHODS, volume 7)

Summary

In fluid–saturated media wave propagation is dispersive, but the associated internal length scale vanishes in the short wave-length limit. Accordingly, upon the introduction of softening, localisation in a zero width will occur and no regularisation is present. This observation is corroborated by numerical analyses of wave propagation in a finite one-dimensional bar.

Keywords

Permeability Porosity Brittle Assure Compressibility 

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Copyright information

© Springer 2007

Authors and Affiliations

  1. 1.Faculty of Aerospace EngineeringDelft University of TechnologyDelftThe Netherlands
  2. 2.LaMCoSINSA de LyonVilleurbanneFrance
  3. 3.LTDS-ENISE, ENISESaint-EtienneFrance

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