Plastic anisotropy of soft reconstituted clays

M. Karstunen, M. Koskinen, University of Strathclyde, City of Helsinki, EC HPRN-CT-1999-00049 (Funder), EC MRTN-CT-2004-512120 (Funder), Academy of Finland (Grants 53936 and 78569) (Funder), Finnish Road Administration (Funder)

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

The aim of the paper is to extend the experimental validation of the S-CLAY1 model, which is a recently proposed elastoplastic constitutive model that accounts for initial and plastic strain-induced anisotropy. Drained stress path controlled tests were performed on reconstituted samples of four Finnish clays to study the effects of anisotropy in the absence of the complexities of structure present in natural undisturbed clays. Each test involved several loading, unloading, and reloading stages with different values of stress ratio and, hence, induced noticeable changes in the fabric anisotropy. Comparisons between test results and model predictions with the S-CLAY1 model and the modified Cam clay model demonstrate that despite its simplicity, the S-CLAY1 model can provide excellent predictions of the behaviour of unstructured soil.
LanguageEnglish
Pages314-328
Number of pages15
JournalCanadian Geotechnical Journal
Volume45
Issue number3
DOIs
Publication statusPublished - Mar 2008

Fingerprint

soft clay
Clay
Anisotropy
anisotropy
plastic
Plastics
Cam-clay model
clay
Cams
unloading
prediction
Constitutive models
Unloading
Plastic deformation
Soils
test
soil

Keywords

  • plastic anisotropy
  • reconstituted clays
  • civil engineering
  • geotechnical studies

Cite this

Karstunen, M., Koskinen, M., University of Strathclyde, City of Helsinki, EC HPRN-CT-1999-00049 (Funder), EC MRTN-CT-2004-512120 (Funder), ... Finnish Road Administration (Funder) (2008). Plastic anisotropy of soft reconstituted clays. Canadian Geotechnical Journal, 45(3), 314-328. https://doi.org/10.1139/T07-073
Karstunen, M. ; Koskinen, M. ; University of Strathclyde ; City of Helsinki ; EC HPRN-CT-1999-00049 (Funder) ; EC MRTN-CT-2004-512120 (Funder) ; Academy of Finland (Grants 53936 and 78569) (Funder) ; Finnish Road Administration (Funder). / Plastic anisotropy of soft reconstituted clays. In: Canadian Geotechnical Journal. 2008 ; Vol. 45, No. 3. pp. 314-328.
@article{2a5bc3eb40b94f1b9da21ff62c147891,
title = "Plastic anisotropy of soft reconstituted clays",
abstract = "The aim of the paper is to extend the experimental validation of the S-CLAY1 model, which is a recently proposed elastoplastic constitutive model that accounts for initial and plastic strain-induced anisotropy. Drained stress path controlled tests were performed on reconstituted samples of four Finnish clays to study the effects of anisotropy in the absence of the complexities of structure present in natural undisturbed clays. Each test involved several loading, unloading, and reloading stages with different values of stress ratio and, hence, induced noticeable changes in the fabric anisotropy. Comparisons between test results and model predictions with the S-CLAY1 model and the modified Cam clay model demonstrate that despite its simplicity, the S-CLAY1 model can provide excellent predictions of the behaviour of unstructured soil.",
keywords = "plastic anisotropy, reconstituted clays, civil engineering, geotechnical studies",
author = "M. Karstunen and M. Koskinen and {University of Strathclyde} and {City of Helsinki} and {EC HPRN-CT-1999-00049 (Funder)} and {EC MRTN-CT-2004-512120 (Funder)} and {Academy of Finland (Grants 53936 and 78569) (Funder)} and {Finnish Road Administration (Funder)}",
year = "2008",
month = "3",
doi = "10.1139/T07-073",
language = "English",
volume = "45",
pages = "314--328",
journal = "Canadian Geotechnical Journal",
issn = "0008-3674",
number = "3",

}

Karstunen, M, Koskinen, M, University of Strathclyde, City of Helsinki, EC HPRN-CT-1999-00049 (Funder), EC MRTN-CT-2004-512120 (Funder), Academy of Finland (Grants 53936 and 78569) (Funder) & Finnish Road Administration (Funder) 2008, 'Plastic anisotropy of soft reconstituted clays' Canadian Geotechnical Journal, vol. 45, no. 3, pp. 314-328. https://doi.org/10.1139/T07-073

Plastic anisotropy of soft reconstituted clays. / Karstunen, M.; Koskinen, M.; University of Strathclyde; City of Helsinki; EC HPRN-CT-1999-00049 (Funder); EC MRTN-CT-2004-512120 (Funder); Academy of Finland (Grants 53936 and 78569) (Funder); Finnish Road Administration (Funder).

In: Canadian Geotechnical Journal, Vol. 45, No. 3, 03.2008, p. 314-328.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Plastic anisotropy of soft reconstituted clays

AU - Karstunen, M.

AU - Koskinen, M.

AU - University of Strathclyde

AU - City of Helsinki

AU - EC HPRN-CT-1999-00049 (Funder)

AU - EC MRTN-CT-2004-512120 (Funder)

AU - Academy of Finland (Grants 53936 and 78569) (Funder)

AU - Finnish Road Administration (Funder)

PY - 2008/3

Y1 - 2008/3

N2 - The aim of the paper is to extend the experimental validation of the S-CLAY1 model, which is a recently proposed elastoplastic constitutive model that accounts for initial and plastic strain-induced anisotropy. Drained stress path controlled tests were performed on reconstituted samples of four Finnish clays to study the effects of anisotropy in the absence of the complexities of structure present in natural undisturbed clays. Each test involved several loading, unloading, and reloading stages with different values of stress ratio and, hence, induced noticeable changes in the fabric anisotropy. Comparisons between test results and model predictions with the S-CLAY1 model and the modified Cam clay model demonstrate that despite its simplicity, the S-CLAY1 model can provide excellent predictions of the behaviour of unstructured soil.

AB - The aim of the paper is to extend the experimental validation of the S-CLAY1 model, which is a recently proposed elastoplastic constitutive model that accounts for initial and plastic strain-induced anisotropy. Drained stress path controlled tests were performed on reconstituted samples of four Finnish clays to study the effects of anisotropy in the absence of the complexities of structure present in natural undisturbed clays. Each test involved several loading, unloading, and reloading stages with different values of stress ratio and, hence, induced noticeable changes in the fabric anisotropy. Comparisons between test results and model predictions with the S-CLAY1 model and the modified Cam clay model demonstrate that despite its simplicity, the S-CLAY1 model can provide excellent predictions of the behaviour of unstructured soil.

KW - plastic anisotropy

KW - reconstituted clays

KW - civil engineering

KW - geotechnical studies

U2 - 10.1139/T07-073

DO - 10.1139/T07-073

M3 - Article

VL - 45

SP - 314

EP - 328

JO - Canadian Geotechnical Journal

T2 - Canadian Geotechnical Journal

JF - Canadian Geotechnical Journal

SN - 0008-3674

IS - 3

ER -

Karstunen M, Koskinen M, University of Strathclyde, City of Helsinki, EC HPRN-CT-1999-00049 (Funder), EC MRTN-CT-2004-512120 (Funder) et al. Plastic anisotropy of soft reconstituted clays. Canadian Geotechnical Journal. 2008 Mar;45(3):314-328. https://doi.org/10.1139/T07-073