Presentation of the course, teaching methodology, type of evaluation, self-presentation by students. Introduction about the content of the course: brief description of the typical responses of soils considered - clays and silts reconstituted in the laboratory, clays and natural silts, clay rocks, sands, cemented sands, sandstones - definition of the concept of micro-structure. Presentation the literature.

Specific Objectives

Recognize the difference between the behavior of natural and reconstituted soils. Acquire the concept of soil micro--structure. Be aware of the logistic aspects of the course (learning advance schedule, evaluation activities, ...).

Dedication

Define the concept of deformation, stress and effective stress. Brief presentation of the theories of elasticity, plasticity and visco-plasticity. Formulation of the one-dimensional theory of perfect and hardening plasticity. One-dimensional Illustration of the concepts of loss of existence and uniqueness in material response. Presentation of conventional and unconventional tests available in the laboratory to study the response of soils Implementation of a driver for the integration of an elastic model under triaxial conditions. Simulation of synthetic tests.

Specific Objectives

Handle the variables controlling the mechanical behavior of soil. Know available frameworks to model the behavior of soils. Handle more particularly the framework of elastoplasticity. Choosing the most appropriate laboratory tests to study the response of soils under given conditions. Interpret the experimental response. Acquire concepts to develop a driver for the integration of mechanical laws under mixed stress-strain control. Formulate a elastic model. Apply it to common stress paths in Geotechnics.

Dedication

Presentation of Mohr-Coulomb shear failure criterion. Formulation of an elastoplastic model based on this criterion. Description of solutions to the problem of the shape of the failure criterion in the deviatoric plane. Discussion on the dilatant aspect of the model. Brief presentation of applications of this type of model in Geotechnics. Development of an elastoplastic model based on shear strength criterion Remoulded soil behavior and modeling the phenomenon of dilatancy / contractancia Development of a model critical condition Behavior of natural soils and modeling of the phenomenon of destructuración Behavior within the limit envelope and modeling of the progressive appearance of plastic deformations Development of an elastoplastic model with softening by degradation

Dedication

Modelling unsaturated soil behavior Modeling of the thermal load response Introduction to modeling the response of soils under chemical changes Introduction to the modeling of microstructural changes

Dedication

Dedication