Banca de DEFESA: Isabella Maria Martins de Souza

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : Isabella Maria Martins de Souza
DATE: 13/06/2023
TIME: 09:00
LOCAL: UnB e Teams
TITLE:

APPLICATION OF CONSTITUTIVE MODELS WITH SUB-LOADING FOR THE ANALYSIS OF SLOPE STABILITY PROBLEMS

KEY WORDS:

Critical State Models, SSR Method, Stability Analysis, Sub-Loading

PAGES: 80
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Geotécnica
SPECIALTY: Obras de Terra e Enrocamento
SUMMARY:

Geotechnics is an important field due to the large scale and significance of its structures for society, such as dams, deposit piles, road cutting and filling, foundation of civil structures, and many other works where geotechnical knowledge is necessary for their execution. However, serious impacts on society are associated with this type of work, where the risks of failure can generate significant financial, environmental, and human life losses. Advances in geotechnical research allow for the improvement of numerical methods and constitutive models, seeking a better representation of the behavior of soil exposed to different boundary and loading conditions. Thus, models that can be used in the evaluation of geotechnical problems considering the particularities observed in tropical soils have been presented. Following this, an applied discussion shows the application of the Shear Strength Reduction (SSR) method considering the Modified Cam-Clay Hardening (MCC) critical state model. An evaluation of the performance of critical state models in laboratory testing was also carried out, indicating limitations of the MCC model for assessing the behavior of tropical soils. Finally, a simplification of the Madus Sub-loading model (Cordão Neto et al., 2009) was implemented in a commercial software for the development of a constitutive model that considers the critical state concept and the effect of sub-loading.

BANKING MEMBERS:
Externo à Instituição - LUIS CARLOS DE SOUSA JUNIOR - PETROBRAS
Interno - 2161425 - JUAN FELIX RODRIGUEZ REBOLLEDO
Presidente - 1549489 - MANOEL PORFIRIO CORDAO NETO