Shear band analysis of silt-clay transition soils under three-dimensional stress-strain conditions
Issued Date
2024-12-01
Resource Type
ISSN
00380806
Scopus ID
2-s2.0-85207599959
Journal Title
Soils and Foundations
Volume
64
Issue
6
Rights Holder(s)
SCOPUS
Bibliographic Citation
Soils and Foundations Vol.64 No.6 (2024)
Suggested Citation
Anantanasakul P., Kaliakin V.N. Shear band analysis of silt-clay transition soils under three-dimensional stress-strain conditions. Soils and Foundations Vol.64 No.6 (2024). doi:10.1016/j.sandf.2024.101532 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/101905
Title
Shear band analysis of silt-clay transition soils under three-dimensional stress-strain conditions
Author(s)
Author's Affiliation
Corresponding Author(s)
Other Contributor(s)
Abstract
This paper investigates shear banding as a possible failure mode for silt–clay transition soils under general three-dimensional stress conditions. Drained and undrained true triaxial tests with constant b values were performed on tall prismatic specimens of such soils with systematically varying silt contents. Based on the values of critical plastic hardening modulus, shear banding does not govern the strength characteristics of the soils for b values less than 0.2. For larger b values, shear band formation is essentially critical as it takes place in the hardening regime of the stress–strain curves prior to the smooth peak failure points. An increase in silt content appears to move the onset of shear banding to lower levels of shear in the stress–strain relations of the silt–clay transition soils. It is also demonstrated that a non-associated constitutive model with a single hardening law is capable of accurately predicting the onset of shear banding in normally consolidated silt–clay transition soils based on bifurcation theory.