Predicting onset and orientation of localisation bands using a cohesive-frictional model

Linh A. Le, Giang D. Nguyen, Ha H. Bui

Research output: Chapter in Book/Report/Conference proceedingChapter (Book)Other

Abstract

In this study, a localisation band idealised as zero-thickness surface and represented by a cohesive-frictional model is directly incorporated into the structure of a new constitutive modelling approach and is activated once a stress-based condition is met. The embedded cohesive-frictional model provides a natural way to detect both the onset and orientation of localisation bands. This is different from existing continuum approaches based on the loss of positiveness of the determinant of the acoustic tensor. The formulation in this approach also creates a strong link between quantities describing the localisation band in the model and experiments, facilitating the calibration of model parameters.

Original languageEnglish
Title of host publicationCIGOS 2019, Innovation for Sustainable Infrastructure
Subtitle of host publicationProceedings of the 5th International Conference on Geotechnics, Civil Engineering Works and Structures
PublisherSpringer
Pages311-316
Number of pages6
DOIs
Publication statusPublished - 2020

Publication series

NameLecture Notes in Civil Engineering
Volume54
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Keywords

  • Bifurcation analysis
  • Cohesive-frictional models
  • Geomaterials
  • Localised failure

Cite this

Le, L. A., Nguyen, G. D., & Bui, H. H. (2020). Predicting onset and orientation of localisation bands using a cohesive-frictional model. In CIGOS 2019, Innovation for Sustainable Infrastructure: Proceedings of the 5th International Conference on Geotechnics, Civil Engineering Works and Structures (pp. 311-316). (Lecture Notes in Civil Engineering; Vol. 54). Springer. https://doi.org/10.1007/978-981-15-0802-8_47