Behaviour of soil-structure interfaces subjected to large number of cycles. Application to modeling of piles cyclically loaded
type: Dataset
description: A series of monotonic and cyclic 2D direct shear tests on sand (Fontainebleau)-rough/smoothmaterial interfaces under constant normal load (CNL) and constant normal stiffness (CNS)conditions are presented. The aim of these tests is to simulate the situation along the shaftof piles subjected to a large number of cycles due to environmental or anthropic loadings.These cycles (typically 104) are of small amplitude (10, 20 and 40 kPa in terms of shearstress) as the service loads are not supposed to produce an early failure. These tests in-clude the series of changing the cyclic amplitude in succession. The problem of loss of sandbetween the box and the rough plate, typical phenomenon in this type of test, receives aspecial attention. It is interesting to observe, according to the initial density, the positionof the ”center of cycles” in the stress plane (mean cyclic variables). Several factors such asinitial density (ID0), initial normal stress (_n cm0), level of initial mean cyclic stress ratio(_cm0), reduced cyclic amplitude (__) and imposed normal stiffness (in this thesis, k =1000, 2000 and 5000 kPa/mm) that influence the intensity of mean cyclic normal ([u]cm)and shear ([w]cm) displacements are considered. Along CNL paths either dilation or con-traction is exhibited, in agreement with the characteristic state developed by Luong. Theinfluence of the stress path (under constant normal stress or prescribed normal stiffness)is also highlighted. It should be highlighted that CNS paths are ever contractive. Themodel of monotonic interface behaviour under CNL and oedometer paths is fully analyt-ical and based on the rate-type framework with the normal relative displacement or theinterface density as unique memory parameter. While the analytical formulations for iden-tification are first proposed to describe the interface behaviour under cyclic CNL condition,the variation of cyclic amplitude and CNS condition are modeled by applying the analyticalformulations for validation…
landing page: https://theses.hal.science/tel-00809729
identifier: NNT: 2013GRENI001
keyword: characteristic-state
keyword: chargement-cy--clique
keyword: chemin-cyclique-moyen
keyword: cyclic-loading
keyword: direct-shear-tests
keyword: essais-de-cisaillement-direct
keyword: etat-caracteristique
keyword: grand-nombre-de-petits-cycles
keyword: granular-soil-structure-interface
keyword: infoeu-reposemanticsdoctoralthesis
keyword: interface-sol-granulaire-structure
keyword: large-number-of-small-cycles
keyword: mean-cyclic-path
keyword: pseudo--visco-plasticite
keyword: pseudo-visco-plasticity
keyword: spiotherengineering-sciences-physicsother
keyword: theses
issued: 2026-05-11T15:07:23.534480
modified: 2026-05-11T15:07:23.534485
language: fr
contact point: Organization
  fn: CCSD

test_moissonnage_selune
type: Agent

Behaviour of soil-structure interfaces subjected to large number of cycles. Application to modeling of piles cyclically loaded
type: Distribution
format: HTML
access URL: https://theses.hal.science/tel-00809729
issued: 2026-05-11T15:07:23.591768
modified: 2026-05-11T15:07:23.506282