Title

Simulation of Monotonic and Cyclic Soil Behavior using a Kinematic Hardening Plasticity Model

Abstract

In this paper we investigate the PM4Sand plasticity model developed by Boulanger and Ziotopoulou in predicting soil behavior under cyclic loading. PM4Sand is a constitutive model based on the earlier Dafalias-Manzari model and builds on critical state soil mechanics theory. PM4Sand uses a two-surface kinematic yield surface in modeling soil behavior and more importantly considers the effect of fabric change and void ratio evolution during loading. The model works robustly over a wide range of loading conditions and stress paths. It was calibrated by Boulanger and Ziotopoulou at different relative densities under a range of confining pressures. In this study, we implemented the model in a MATLAB script and further calibrated it with test data in the literature. Results from earlier experimental studies on Fuji River sand and Sacramento River sand at different relative densities and confining pressures were used in our calibration efforts. Simulated and measured values of number of cycles to liquefaction triggering were compared. The results have shown that PM4Sand can predict the number of cycles to liquefaction with considerable accuracy for a variety of cyclic load levels for these sands at different relative densities consolidated to a wide range of confining pressures.

Meeting Name

2014 Congress on Geo-Characterization and Modeling for Sustainability, Geo-Congress 2014 (2014: Feb. 23-26, Atlanta, GA)

Department(s)

Civil, Architectural and Environmental Engineering

Keywords and Phrases

Calibration; Cyclic Loads; Kinematics; MATLAB; Rock Pressure; Soils; Stress Analysis; Sustainable Development, Confining Pressures; Critical State Soil Mechanics Theory; Kinematic Hardening; Loading Condition; Number Of Cycles; Plasticity Model; Relative Density; Sacramento River, Soil Liquefaction

International Standard Book Number (ISBN)

978-078441327-2

International Standard Serial Number (ISSN)

0895-0563

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2014 American Society of Civil Engineers (ASCE), All rights reserved.

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