A critical state two-surface plasticity model for gravelly soil-structure interfaces under monotonic and cyclic loading. (December 2016)

• Record Type: Journal Article
• Authors: Saberi, Miad; Annan, Charles-Darwin; Konrad, Jean-Marie; Lashkari, Ali
• Is Part Of: Computers and geotechnics. Volume 80(2016)
• Page Start: 71
• Page End: 82
• Publication Date: 2016-12
• Subjects: Soil-structure interface -- Cyclic and monotonic loading -- Loose and dense gravelly soils -- Two-surface plasticity -- Critical state soil mechanics; Engineering geology -- Data processing -- Periodicals; Soil mechanics -- Data processing -- Periodicals; Rock mechanics -- Data processing -- Periodicals; 624.1510285
• DOI: 10.1016/j.compgeo.2016.06.011
• Languages: English
• ISSNs: 0266-352X

Abstract

Abstract: An elasto-plastic model is proposed for modeling the constitutive behavior of the interface between gravelly soils and structural materials. This model is based on the two-surface plasticity formulation and it is compatible with the concept of critical state soil mechanics. The model requires the same set of eight calibration parameters for predicting the monotonic and cyclic responses of both loose and dense interfaces. The model simulates cyclic densification, shear degradation and the effects of normal pressure, soil density, and stress path. The performance of the proposed constitutive model is validated by tests data under different normal stresses and boundary conditions.