Banca de QUALIFICAÇÃO: JOSE WILSON DOS SANTOS

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : JOSE WILSON DOS SANTOS
DATE: 27/11/2023
TIME: 15:00
LOCAL: Ambiente virtual
TITLE:

Evaluation of the elastic behavior of plane panels of laminated composite materials using the finite volume theory

KEY WORDS:

Composite materials. Symmetrical laminate panels. Finite-volume Theory. Classical Lamination Theory.  Progressive failures.

 

PAGES: 86
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Estruturas
SUMMARY:

The advent of new technologies has enabled the emergence of a new generation of advanced structural materials, known as composites. An important class of such materials includes those constituted by a polymer matrix reinforced with high performance unidirectional long fibers. The presente work has as objective the development of a study on the static behavior of plane panels composed by linear elastic composite laminae bonded together to act as an integral structural element. The laminae can be reinforced by fibers with different orientations and stacked in symmetric lamination schemes, characterizing a macroscopic monoclinic system. The external actions are applied on the middle plane of the panels. The analyses employ the classic lamination theory (CLT) as analytical tool for the homogenization of the laminate panels and a parametric formulation based on the finite-volume theory (FVT) to evaluate the structural behavior of the equivalent homogenized panels. The occurence of progressive failure in the laminae is considered using simplified design criteria and damage parameters to take into account the degradation process. To show the preliminar development of the work, the results obtained for a composite lamina, reinforced by inclined fibers and subjected to a uniaxial tensile load, are presented. This example simulates the important off-axis tensile test very known in the composite community. These prelimary analyses show a good agreement between the results produced by the mentioned TVF formulation, an analytical model, a finite-element procedure and experimental data.

COMMITTEE MEMBERS:
Presidente - 1120064 - SEVERINO PEREIRA CAVALCANTI MARQUES
Interno(a) - 2544065 - MARCIO ANDRE ARAUJO CAVALCANTE
Externo(a) ao Programa - 1837162 - ROMILDO DOS SANTOS ESCARPINI FILHO - UFAL