Banca de DEFESA: KEVIN TENORIO LOBO MARTINS DE SOUZA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : KEVIN TENORIO LOBO MARTINS DE SOUZA
DATE: 05/01/2024
TIME: 14:30
LOCAL: Remotamente, pelo link: meet.google.com/poy-orvu-ayf
TITLE:

Application of the FVDAM technique in reinforced masonry

KEY WORDS:

Natural Fiber-Reinforced Cementitious Matrix. Finite-Volume Direct Averaging Micromechanics. Heterogenic Materials Micromechanics. Fiber-Reinforced Masonry.

PAGES: 52
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Estruturas
SPECIALTY: Mecânica das Estruturas
SUMMARY:

Masonry is one of the oldest construction techniques in humanity. Despite millenia of study and improvement, there are still gaps in scientific knowledge and disadvantages to overcome. This is partially due to the difficulty in modelling and characterizing the material, that presents heterogeneous and periodic characteristics. One way to improve masonry about some of its weaknesses is fiber reinforcement. Fiber-reinforced Cementitious Matrix (FRCM) is a kind of reinforcement that has been well studied in this context. Consists of the coating of one or both faces of a masonry wall with a mesh of fibers embedded in cementitious matrix. Several materials can be used as fibers, the most common being steel, carbon, glass and aramid. The use of natural fibers (NFRCM) presents potential advantages in the scope of sustainability, but it is still little explored. Among the natural fibers, sisal fiber stands out, which is used in the form of ropes and presents abundant production in Brazil. However, FRCM presents an even greater challenge of modelling, since it increases the complexity and number of phases of masonry. The Finite-Volume Direct Averaging Micromechanics (FVDAM) technique is a promising option and still without application in the context of natural fibers. It consists of a homogenization technique that uses the Finite-Volume Theory (FVT) to calculate the effective properties of a heterogeneous material. Thus, the objective of this work is to investigate the effectiveness of FVDAM in the modelling and homogenization of masonry reinforced by NFRCM, comparing the results with other modelling techniques and physical tests.

COMMITTEE MEMBERS:
Presidente - 1545555 - FRANCISCO PATRICK ARAUJO ALMEIDA
Interno(a) - 1120064 - SEVERINO PEREIRA CAVALCANTI MARQUES
Externo(a) ao Programa - 1837162 - ROMILDO DOS SANTOS ESCARPINI FILHO - UFALExterno(a) à Instituição - RODRIGO RIBEIRO PACCOLA - USP