STRESS-STRAIN HARMONIC RESPONSE IN GRANULAR SOILS

RESPUESTA ARMONICA TENSION-DEFORMACION DE SUELOS GRANULARES

This article sets out a mathematical model composed of semi-empirical constitutive equations of soils which will allow to take into account all the operative factors involved and reproduce as faithfully as possible the behaviour observed. The analogy between, on the one hand, the results of drained triaxial compression tests on sand, with the cell pressure constant, at a controlled rate of deformation, and, on the other hand, the curves showing elongation in terms of time in the problem of damped vibrations where there is no oscillation, enables one to apply the differential equation for critical damping to drained triaxial tests on sands. The significance of the parameters for these differential equations is explained, as are the manner of deriving them from the test results and their variation with the levels of stress. Finally, the harmonic response model is generalized to any type of test with any configuration of stresses and strains. This generalization is based on the following assumptions: (a) that the basic equations are valid if total strains are replaced by their plastic components, and (b) that the ratio between increase in volume change and in strain is of general validity when it is expressed in terms of plastic components of strain. /TRRL/

  • Availability:
  • Corporate Authors:

    Laboratorio del Transporte y Mecanica del Suelo

    Alfonso XII
    Madrid, ZZ Espagne   
  • Authors:
    • Uriel, A
  • Publication Date: 1978-1-2

Language

  • Spanish

Media Info

  • Features: Figures; Tables;
  • Pagination: p. 9-32
  • Serial:
    • Boletin de Informacion
    • Issue Number: 125
    • Publisher: Institute of Civilian Engineers of Spain
    • ISSN: 0210-9085

Subject/Index Terms

Filing Info

  • Accession Number: 00196844
  • Record Type: Publication
  • Source Agency: Ministry of Public Works, Spain
  • Files: ITRD, TRIS
  • Created Date: Sep 29 1979 12:00AM