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Title: The elastoplastic analysis of soil consolidation, with special reference to kinematic hardening
Author: Norris, V. A.
Awarding Body: University College of Swansea
Current Institution: Swansea University
Date of Award: 1981
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The first part of this thesis deals with the development of computer programs for the elastic and elastoplastic analysis of soils subject to pore pressure dissipation, using finite element techniques. The elastoplastic constitutive relationships involve Mohr-Coulomb and critical state ellipse yield surfaces both separately and in combination, with the option of smoothing out corners. Pore pressure dissipation is handled along the lines of Biot's consolidation theory. The latter part of this thesis is concerned with investigating more sophisticated plasticity models for the analysis of soils subjected to complex loading histories. Kinematic hardening is applied by means of a yield surface moving inside the standard critical state ellipse. A set of 'nesting' surfaces may be used to determine the direction of translation of the yield surface as well as the variation of the plastic hardening modulus. Alternatively, simpler rules relating only to the yield surface and the bounding critical state ellipse may play the same role. The effectiveness of such models is judged by comparing their predictions with experimental observations for monotonic and cyclic triaxial loading.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available