The application of capped plasticity model to embankment problems
Abstract
Among the constitutive soil models, the capped plasticity model has received wide acceptance in finite element analysis of geotechnical problems. However, the material constants required to evaluate the capped plasticity model parameters are generally not familiar to practicing geotechnical engineers. A simple and reliable procedure to relate the capped plasticity model parameters to data available from conventional soil tests is proposed in this thesis. It achieves both simplicity in use and realistic representation of actual condition in practice. Typical embankment problems are analyzed to illustrate the suitability of the proposed procedure and the applicability of the capped plasticity model. Large deformation analysis occurs frequently in geotechnical problems. A concise summary of large deformation analysis, solution algorithm and computer implementation is presented. This will provide design engineers a better understanding of the complete computing process of plasticity-based large deformation finite element analysis. To this end, the NFAP program developed previously at Purdue University for the analysis of plane strain problems is modified and extended to obtain solutions of geotechnical problems in engineering practice.
Degree
Ph.D.
Advisors
Chen, Purdue University.
Subject Area
Civil engineering
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