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

Cortis, M.; Coombs, W. M.; Augarde, C. E.; Robinson, S.; Brennan, A.; Brown, M.

Abstract

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 the MPM is 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.

Citation

Cortis, M., Coombs, W. M., Augarde, C. E., Robinson, S., Brennan, A., & Brown, M. (2017, April). The modelling of soil-tool interaction using the material point method. Presented at 25th Conference on Computational Mechanics UKACM 2017., Birmingham, UK

• Presentation Conference Type: Conference Paper (published)
• Conference Name: 25th Conference on Computational Mechanics UKACM 2017.
• Start Date: Apr 11, 2017
• End Date: Apr 13, 2017
• Publication Date: Apr 13, 2017
• Deposit Date: Jun 7, 2017
• Publicly Available Date: Nov 22, 2024
• Publisher: University of Birmingham
• Pages: 211-214
• Book Title: Proceedings of the 25th Conference on Computational Mechanics (UKACM 2017) : 11th – 13th April 2017, School of Engineering, University of Birmingham, Birmingham, UK.
• Public URL: https://durham-repository.worktribe.com/output/1146170
• Publisher URL: http://ukacm2017.ukacm.org/wp-content/uploads/2017/04/Proceedings-UKACM2017-compressed.pdf