A simple FEM formulation applied to nonlinear problems of impact with thermomechanical coupling

The thermal effects of problems involving deformable structures are essential to describe the behavior of materials in feasible terms. Verifying the transformation of mechanical energy into heat it is possible to predict the modifications of mechanical properties of materials due to its temperature...

ver descrição completa

Na minha lista:

Detalhes bibliográficos
Principais autores:	Maciel, Daniel Nelson, Cavalcante, João Paulo de Barros, Greco, Marcelo, Silva Filho, José Neres da
Formato:	article
Idioma:	English
Publicado em:	Associação Brasileira de Ciências Mecânicas
Assuntos:	Positional Formulation Nonlinear analysis Thermomechanical Coupled problems Impact
Endereço do item:	https://repositorio.ufrn.br/handle/123456789/30792
Tags:	Adicionar Tag Sem tags, seja o primeiro a adicionar uma tag!

id	ri-123456789-30792
record_format	dspace
spelling	ri-123456789-307922020-12-06T08:06:40Z A simple FEM formulation applied to nonlinear problems of impact with thermomechanical coupling Maciel, Daniel Nelson Cavalcante, João Paulo de Barros Greco, Marcelo Silva Filho, José Neres da Positional Formulation Nonlinear analysis Thermomechanical Coupled problems Impact The thermal effects of problems involving deformable structures are essential to describe the behavior of materials in feasible terms. Verifying the transformation of mechanical energy into heat it is possible to predict the modifications of mechanical properties of materials due to its temperature changes. The current paper presents the numerical development of a finite element method suitable for nonlinear structures coupled with thermomechanical behavior; including impact problems. A simple and effective alternative formulation is presented, called FEM positional, to deal with the dynamic nonlinear systems. The developed numerical is based on the minimum potential energy written in terms of nodal positions instead of displacements. The effects of geometrical, material and thermal nonlinearities are considered. The thermodynamically consistent formulation is based on the laws of thermodynamics and the Helmholtz free-energy, used to describe the thermoelastic and the thermoplastic behaviors. The coupled thermomechanical model can result in secondary effects that cause redistributions of internal efforts, depending on the history of deformation and material properties. The numerical results of the proposed formulation are compared with examples found in the literature 2020-11-30T23:17:07Z 2020-11-30T23:17:07Z 2017 article CAVALCANTE, J. P. B.; MACIEL, D.N.; GRECO, Marcelo; SILVA FILHO, J. N . A simple FEM formulation applied to nonlinear problems of impact with thermomechanical coupling. Latin American Journal of Solids and Structures, v. 14, p. 2439-2462, 2017. Disponível em: https://www.lajss.org/index.php/LAJSS/article/view/3737. Acesso em: 31 nov, 2020. http://dx.doi.org/10.1590/1679-78253737 1679-7817 1679-7825 https://repositorio.ufrn.br/handle/123456789/30792 10.1590/1679-7825373 en Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ application/pdf Associação Brasileira de Ciências Mecânicas
institution	Repositório Institucional
collection	RI - UFRN
language	English
topic	Positional Formulation Nonlinear analysis Thermomechanical Coupled problems Impact
spellingShingle	Positional Formulation Nonlinear analysis Thermomechanical Coupled problems Impact Maciel, Daniel Nelson Cavalcante, João Paulo de Barros Greco, Marcelo Silva Filho, José Neres da A simple FEM formulation applied to nonlinear problems of impact with thermomechanical coupling
description	The thermal effects of problems involving deformable structures are essential to describe the behavior of materials in feasible terms. Verifying the transformation of mechanical energy into heat it is possible to predict the modifications of mechanical properties of materials due to its temperature changes. The current paper presents the numerical development of a finite element method suitable for nonlinear structures coupled with thermomechanical behavior; including impact problems. A simple and effective alternative formulation is presented, called FEM positional, to deal with the dynamic nonlinear systems. The developed numerical is based on the minimum potential energy written in terms of nodal positions instead of displacements. The effects of geometrical, material and thermal nonlinearities are considered. The thermodynamically consistent formulation is based on the laws of thermodynamics and the Helmholtz free-energy, used to describe the thermoelastic and the thermoplastic behaviors. The coupled thermomechanical model can result in secondary effects that cause redistributions of internal efforts, depending on the history of deformation and material properties. The numerical results of the proposed formulation are compared with examples found in the literature
format	article
author	Maciel, Daniel Nelson Cavalcante, João Paulo de Barros Greco, Marcelo Silva Filho, José Neres da
author_facet	Maciel, Daniel Nelson Cavalcante, João Paulo de Barros Greco, Marcelo Silva Filho, José Neres da
author_sort	Maciel, Daniel Nelson
title	A simple FEM formulation applied to nonlinear problems of impact with thermomechanical coupling
title_short	A simple FEM formulation applied to nonlinear problems of impact with thermomechanical coupling
title_full	A simple FEM formulation applied to nonlinear problems of impact with thermomechanical coupling
title_fullStr	A simple FEM formulation applied to nonlinear problems of impact with thermomechanical coupling
title_full_unstemmed	A simple FEM formulation applied to nonlinear problems of impact with thermomechanical coupling
title_sort	simple fem formulation applied to nonlinear problems of impact with thermomechanical coupling
publisher	Associação Brasileira de Ciências Mecânicas
publishDate	2020
url	https://repositorio.ufrn.br/handle/123456789/30792
work_keys_str_mv	AT macieldanielnelson asimplefemformulationappliedtononlinearproblemsofimpactwiththermomechanicalcoupling AT cavalcantejoaopaulodebarros asimplefemformulationappliedtononlinearproblemsofimpactwiththermomechanicalcoupling AT grecomarcelo asimplefemformulationappliedtononlinearproblemsofimpactwiththermomechanicalcoupling AT silvafilhojoseneresda asimplefemformulationappliedtononlinearproblemsofimpactwiththermomechanicalcoupling AT macieldanielnelson simplefemformulationappliedtononlinearproblemsofimpactwiththermomechanicalcoupling AT cavalcantejoaopaulodebarros simplefemformulationappliedtononlinearproblemsofimpactwiththermomechanicalcoupling AT grecomarcelo simplefemformulationappliedtononlinearproblemsofimpactwiththermomechanicalcoupling AT silvafilhojoseneresda simplefemformulationappliedtononlinearproblemsofimpactwiththermomechanicalcoupling
_version_	1773961881722028032

A simple FEM formulation applied to nonlinear problems of impact with thermomechanical coupling

Registros relacionados