Small strain stiffness within logarithmic contractancy model for structured anisotropic clay

N. Sivasithamparam, M. D'Ignazio, A. B. Tsegaye, J. Castro, C. Madshus

Tutkimustuotos: KonferenssiartikkeliScientificvertaisarvioitu

3 Lataukset (Pure)

Abstrakti

Stiffness of soils in the small strain region is high and it decays nonlinearly with increasing shear strains or with mobilization of shear stresses. However, the commonly used critical state based constitutive models use a simple elastic formulation at small strains that falls short in the prediction of the small strain nonlinearity and anisotropy. This paper proposes a simple way for rendering the existing constitutive models with the capability to capture the small strain behaviour of soils. This is illustrated by proposing a new model for structured anisotropic clay extending an existing model that uses the framework of logarithmic contractancy called E-SCLAY1S. The proposed model is implemented into a Finite Element program as a user-defined soil model. The model predictions are compared with experimental data for various clays. Furthermore, the effect of nonlinearity is investigated for an excavation in soft clay.

AlkuperäiskieliEnglanti
Artikkeli012042
JulkaisuIOP Conference Series: Earth and Environmental Science
Vuosikerta710
Numero1
DOI - pysyväislinkit
TilaJulkaistu - 2021
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
TapahtumaNordic Geotechnical Meeting - Helsinki, Virtual, Suomi
Kesto: 18 tammik. 202119 tammik. 2021

Julkaisufoorumi-taso

  • Jufo-taso 0

!!ASJC Scopus subject areas

  • Yleinen ympäristötiede
  • Yleiset maa- ja planeettatieteet

Sormenjälki

Sukella tutkimusaiheisiin 'Small strain stiffness within logarithmic contractancy model for structured anisotropic clay'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

Siteeraa tätä