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Modelling post-failure behaviour of chalk cliffs with the Material Point Method

Sutcliffe, Sam J. V.; Coombs, William M.; Zhang, Wangcheng; Duddu, Ravindra

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Sam Sutcliffe sam.sutcliffe@durham.ac.uk
PGR Student Doctor of Philosophy

Ravindra Duddu



Contributors

William M. Coombs
Editor

Abstract

This work evaluates the use of the Material Point Method (MPM) with continuum damage plasticity to model fracture for the use of a combined pre- and post-failure simulation. MPM is used to allow for large deformations and geometry changes without mesh distortion and damage diffusion. An integral non-local continuum damage model is used to model brittle fracture, which avoids the mesh dependency issues exhibited by local models. The modelling approach is demonstrated on chalk cliff collapse problems, where the final state of the rock formation after the failure is of importance and critically linked to further failure processes.

Presentation Conference Type Conference Paper (Published)
Conference Name 2024 UK Association for Computational Mechanics Conference
Start Date Apr 10, 2024
End Date Apr 12, 2024
Acceptance Date Jan 26, 2024
Online Publication Date Apr 25, 2024
Publication Date Apr 25, 2024
Deposit Date Jun 21, 2024
Publicly Available Date Jul 11, 2024
Publisher Durham University
Pages 136-139
Book Title UKACM Proceedings 2024
DOI https://doi.org/10.62512/conf.ukacm2024.048
Public URL https://durham-repository.worktribe.com/output/2488163

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