Computational Mechanics

, Volume 60, Issue 5, pp 725–738 | Cite as

Wave dispersion and propagation in state-based peridynamics

  • Sahir N. Butt
  • Jithender J. Timothy
  • Günther MeschkeEmail author
Original Paper


Peridynamics is a nonlocal continuum model which offers benefits over classical continuum models in cases, where discontinuities, such as cracks, are present in the deformation field. However, the nonlocal characteristics of peridynamics leads to a dispersive dynamic response of the medium. In this study we focus on the dispersion properties of a state-based linear peridynamic solid model and specifically investigate the role of the peridynamic horizon. We derive the dispersion relation for one, two and three dimensional cases and investigate the effect of horizon size, mesh size (lattice spacing) and the influence function on the dispersion properties. We show how the influence function can be used to minimize wave dispersion at a fixed lattice spacing and demonstrate it qualitatively by wave propagation analysis in one- and two-dimensional models of elastic solids. As a main contribution of this paper, we propose to associate peridynamic non-locality expressed by the horizon with a characteristic length scale related to the material microstructure. To this end, the dispersion curves obtained from peridynamics are compared with experimental data for two kinds of sandstone.


State-based peridynamics Nonlocal continuum Dispersion Wave propagation Granular materials 



The support provided by the German Science Foundation (DFG) in the framework of Project C4 of the Collaborative Research Center SFB 837 ‘Interaction modeling in mechanized tunneling’ is gratefully acknowledged. The authors would also like to thank Prof. Klaus Hackl, Dr. Pablo Seleson, Prof. Ralf Jänicke and Dr. David Littlewood for many helpful discussions.


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Copyright information

© Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  • Sahir N. Butt
    • 1
  • Jithender J. Timothy
    • 1
  • Günther Meschke
    • 1
    • 2
    Email author
  1. 1.Institute for Structural MechanicsRuhr Universität BochumBochumGermany
  2. 2.Department of Civil and Environment EngineeringRuhr Universität BochumBochumGermany

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