2D evaluation of crack openings using smeared and embedded crack models


Autoria(s): GAMINO, Andre Luis; MANZOLI, Osvaldo Luis; SOUSA, Jose Luiz Antunes de Oliveira e; BITTENCOURT, Tulio Nogueira
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

18/10/2012

18/10/2012

2010

Resumo

This work deals with the determination of crack openings in 2D reinforced concrete structures using the Finite Element Method with a smeared rotating crack model or an embedded crack model In the smeared crack model, the strong discontinuity associated with the crack is spread throughout the finite element As is well known, the continuity of the displacement field assumed for these models is incompatible with the actual discontinuity However, this type of model has been used extensively due to the relative computational simplicity it provides by treating cracks in a continuum framework, as well as the reportedly good predictions of reinforced concrete members` structural behavior On the other hand, by enriching the displacement field within each finite element crossed by the crack path, the embedded crack model is able to describe the effects of actual discontinuities (cracks) This paper presents a comparative study of the abilities of these 2D models in predicting the mechanical behavior of reinforced concrete structures Structural responses are compared with experimental results from the literature, including crack patterns, crack openings and rebar stresses predicted by both models

FAPESP-State of Sao Paulo Research Foundation[06/05843-2]

FAPESP-State of Sao Paulo Research Foundation[04/03049-1]

CNPq-National Council for Scientific and Technological Development[304915/2005-0]

CNPq-National Council for Scientific and Technological Development[307051/2006-4]

CNPq-National Council for Scientific and Technological Development[306678/2006-3]

Identificador

COMPUTERS AND CONCRETE, v.7, n.6, p.483-496, 2010

1598-8198

http://producao.usp.br/handle/BDPI/18211

http://apps.isiknowledge.com/InboundService.do?Func=Frame&product=WOS&action=retrieve&SrcApp=EndNote&UT=000284245900001&Init=Yes&SrcAuth=ResearchSoft&mode=FullRecord

Idioma(s)

eng

Publicador

TECHNO-PRESS

Relação

Computers and Concrete

Direitos

closedAccess

Copyright TECHNO-PRESS

Palavras-Chave #finite elements #fracture mechanics #smeared crack model #embedded crack model #STRONG DISCONTINUITY APPROACH #REINFORCED-CONCRETE #FINITE-ELEMENTS #BEHAVIOR #FAILURE #BEAMS #Computer Science, Interdisciplinary Applications #Construction & Building Technology #Engineering, Civil #Materials Science, Characterization & Testing
Tipo

article

original article

publishedVersion