Banca de DEFESA: LUIZ RICARDO DA SILVA LINHARES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : LUIZ RICARDO DA SILVA LINHARES
DATE: 29/07/2021
TIME: 08:30
LOCAL: meet.google.com/onb-ojar-qrc
TITLE:

Semirigid concections analysis for dynamic nonlinear 2D frames

KEY WORDS:

semirigid conections; posicional FEM; Reisnner Kinematics

PAGES: 80
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Estruturas
SPECIALTY: Mecânica das Estruturas
SUMMARY:

In the design of high-performance structures, a dynamic analysis with physical and geometric nonlinearities is commonly used, using the Finite Element Method (FEM). In this context, there are some gantries that adopt devices for the control of vibrations, as well as the presence of non-linear semi-rigid connections. However, in order to carry out a refined structural analysis, it is necessary to consider these aspects in the projects. The objective of this work is to evaluate an alternative way of including viscoelastic bonds with non-linear behavior through a formulation that uses nodal positions instead of displacements as unknowns of the problem, called positional formulation. The Reissner kinematics will be used to consider the effects of shear, the Newton-Raphson iterative algorithm will be adopted to solve the nonlinear problem and the Kelvin-Voigt rheological model to represent the viscoelastic behavior of the bonds. The validation of the implemented code will be done through the resolution of numerical examples from the literature.

BANKING MEMBERS:
Presidente - 1752508 - DANIEL NELSON MACIEL
Interno - 1451817 - JOEL ARAUJO DO NASCIMENTO NETO
Externo à Instituição - MARCELO GRECO - UFMG