Multi-scale Distinct Lattice Spring Model (m-DLSM)

G. F. Zhao, N Khalili, J. Zhao

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review


Multi-scale modeling is regarded as an exciting and promising methodology which can provide powerful tool for the study of macroscopic mechanical response in geo-materials based on their microstructures. A new multi-scale numerical method: multi-scale Distinct Lattice Spring Model (m-DLSM) is presented, in which the micro model of material is represented by a system of discrete units (e.g. particles) interacting via springs, or, more generally, rheological elements and its macroscopic level model represented by Numerical Manifold Method (NMM). The proposed multi-scale model bears a structure of three layers corresponding to the NMM model, the DLSM model and a model for coupling, respectively. The model for coupling is based on a new developed Particle based Manifold Method (PMM) and is called as PMM model to bridge the DLSM with the NMM. The m-DLSM can reduce the computational resources needed for DLSM which is built totally from particles of small size. In this paper, the theoretical basis of the model as well as its application using several numerical examples is presented.

Original languageEnglish
Title of host publicationComputer Methods for Geomechanics: Frontiers and New Applications
PublisherCentre for Infrastructure Engineering and Safety
Number of pages6
ISBN (Print)9780980824414
Publication statusPublished - 2011
Externally publishedYes
EventInternational Conference of the International Association for Computer Methods and Advances in Geomechanics 2011 - Melbourne, Australia
Duration: 9 May 201111 May 2011
Conference number: 13th


ConferenceInternational Conference of the International Association for Computer Methods and Advances in Geomechanics 2011
Abbreviated titleIACMAG 2011


  • Dynamic failure
  • Multi-scale
  • Numerical modeling

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