Banca de DEFESA: RENATA ÉLINE DE BRÁS FONTES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : RENATA ÉLINE DE BRÁS FONTES
DATE: 31/08/2021
TIME: 10:00
LOCAL: Auditório Pós-Graduação Engenharia Civil - CTG - UFPE
TITLE:

NUMERICAL SIMULATION OF MECHANICAL BEHAVIOR IN DEFORMATION BANDS

KEY WORDS:

Rio do Peixe Basin, Deformation Bands, Uniaxial Test, Triaxial Test, Strong Discontinuities.

PAGES: 75
BIG AREA: Engenharias
AREA: Engenharia Civil
SUMMARY:

Analogous sandstone outcrops, such as those in the Rio do Peixe Basin, have been the subject of petrophysical, geological and geomechanical studies, due to deformations from brittle structures in sedimentary rocks, known as Deformation Bands, which directly influence the properties of rocks. The present work aims to carry out a numerical analysis, which will be able to analyze the effect of shear on strain bands using the Drucker-Prager elastoplastic model to simulate rock masses in shear condition, in addition to evaluating the influence of confining stress and material parameters, and thus model systems with pre-existing fault segments, using as a basis uniaxial and triaxial mechanical tests on the effect of shear on the Deformation Bands of the basin under study. The simulation used the technique of strong discontinuities incorporated to simulate the discontinuity of the deformation bands, with rigidity twice as high as that of sandstone. The Drucker-Prager constitutive model simulation was used, this model facilitates the study of shear zones. Thus, it can be observed that these tests were able to capture the shear stress zone between the strain bands and all around them.

BANKING MEMBERS:
Presidente - 2749584 - IGOR FERNANDES GOMES
Externo à Instituição - MANOEL PORFIRIO CORDAO NETO - UnB
Externo ao Programa - 1032097 - TIAGO SIQUEIRA DE MIRANDA