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- W2126454865 abstract "A material model for soft, wet soil was generated to simulate the deformation behavior of thawing soil under vehicle loading on pave d and unpaved roads. The soil modeled, a frost-susceptible fine sand called Lebanon Sand, was subjected to a full suite of saturated and unsaturated triaxial testing duplicating conditions experienced during large-scale freeze–thaw testing. Material parameters were generated for a capped Drucker–Prager plasticity model with hardening. These were calibrated in triaxial test simulations using the commercial finite element code ABAQUS. The material model was then implemented in several three-dimensional finite element simulations for validation and robustness. THE PROBLEM OF SPRING THAW Spring thaw is a critical time of year for the deteri oration of roads and airfields. Deformation of the road surface (either paved or unpaved) during spring thaw is nearly always the result of defo rmation of the thawing layer, which is weakened though a reduction in density and an increase in moisture as a result of the freezing process. The deformation of the loose, weak, thawing layer is largely plastic, consisting of both compaction and shear. Because of the difficult and time -consuming nature of constructing full -scale test sections and field experiments on thawing ground, we aimed to create a finite element modeling capability, validated with experimental data, which would then be useful for performing computer experiments on a wide range of off-road, pavement, and" @default.
- W2126454865 created "2016-06-24" @default.
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- W2126454865 date "2005-10-09" @default.
- W2126454865 modified "2023-10-14" @default.
- W2126454865 title "Cap Plasticity Model for Thawing Soil" @default.
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- W2126454865 doi "https://doi.org/10.1061/40786(165)8" @default.
- W2126454865 hasPublicationYear "2005" @default.
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