The modelling of soil-tool interaction using the material point method

Michael Cortis (Lead / Corresponding author), William M. Coombs, Charles E. Augarde, Scott Robinson, Michael Brown, Andrew Brennan

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The material point method (MPM) is a numerical tool able to model very large deformations in solid mechanics such as geotechnical problems. To date, soil-tool interaction modelling in theMPMis somewhat difficult, especially when the tool position is not stationary. Usually, the tool’s boundaries do not coincide with the MPM grid and therefore boundary conditions cannot be imposed directly on the grid nodes. An implicit approach based on a penalty type method to impose essential boundary conditions in the MPM has been developed and used in the paper to demonstrate how to model frictionless soil-tool interaction mechanism [3]. This approach assumes that the tool is a rigid body as the deformation of the tool boundaries are insignificant. The same approach can also be used to model the interaction between structures and soil such as foundations.
Original languageEnglish
Title of host publicationProceedings of the 25th UKACM Conference on Computational Mechanics
Place of PublicationUnited Kingdom
PublisherUniversity of Birmingham
Number of pages4
Publication statusPublished - Apr 2017
Event25th UKACM Conference on Computational Mechanics - University of Birmingham, Birmingham, United Kingdom
Duration: 11 Apr 201713 Apr 2017


Conference25th UKACM Conference on Computational Mechanics
Country/TerritoryUnited Kingdom
Internet address


  • material point method
  • essential boundary conditions
  • soil-tool modelling
  • offshore geotechnics


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