skip to main content
Idioma:
Primo Search
Clear Search Box
Search in: Busca Geral
Busca Avançada
Busca por Índices

Effective stress concept in unsaturated soils: Clarification and validation of a unified framework

Nuth, Mathieu ; Laloui, Lyesse

International journal for numerical and analytical methods in geomechanics, 2008-05, Vol.32 (7), p.771-801 [Periódico revisado por pares]

Chichester, UK: John Wiley & Sons, Ltd

Texto completo disponível

Citações Citado por
  • Título:
    Effective stress concept in unsaturated soils: Clarification and validation of a unified framework
  • Autor: Nuth, Mathieu ; Laloui, Lyesse
  • Assuntos: Applied sciences ; Buildings. Public works ; Computation methods. Tables. Charts ; constitutive modelling ; critical state ; effective stress ; Exact sciences and technology ; Geotechnics ; Soil investigations. Testing ; Soil mechanics. Rocks mechanics ; stress framework ; Structural analysis. Stresses ; unsaturated soils
  • É parte de: International journal for numerical and analytical methods in geomechanics, 2008-05, Vol.32 (7), p.771-801
  • Notas: Swiss State Secretariat for Education and Research SER - No. OFES C03.0021-COST C15
    ArticleID:NAG645
    istex:1410A574F3BAD6CBD4910A4692D70E3A751B5099
    ark:/67375/WNG-8LZJ49MK-G
    ObjectType-Article-2
    SourceType-Scholarly Journals-1
    ObjectType-Feature-1
    content type line 23
  • Descrição: The effective stress principle, conventionally applied in saturated soils, is reviewed for constitutive modelling purposes. The assumptions for the applicability of Terzaghi's single effective stress are recalled and its advantages are inventoried. The possible stress frameworks applicable to unsaturated soil modelling are reassessed in a comparative manner, specifically the Bishop's single effective stress, the independent stress variables approach and the generalized stress framework. The latter considerations lead to the definition of a unified stress context, suitable for modelling soils under different saturation states. In order to qualify the implications brought by the proposed stress framework, several experimental data sets are re‐examined in the light of the generalized effective stress. The critical state lines (CSLs) at different saturation states tend to converge remarkably towards a unique saturated line in the deviatoric stress versus mean effective stress plane. The effective stress interpretation is also applied to isotropic paths and compared with conventional net stress conception. The accent is finally laid on a second key feature for constitutive frameworks based on a unified stress, namely the sufficiency of a unique mechanical yield surface besides the unique CSL. Copyright © 2007 John Wiley & Sons, Ltd.
  • Editor: Chichester, UK: John Wiley & Sons, Ltd
  • Idioma: Inglês
Links
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.