| Campo DC | Valor | Idioma |
|---|
| dc.contributor.author | Miranda, Antonio Carlos de Oliveira | - |
| dc.contributor.author | Antunes, Marcelo Avelar | - |
| dc.contributor.author | Meggiolaro, Marco Antonio | - |
| dc.contributor.author | Castro, Jaime Tupiassú Pinho de | - |
| dc.date.accessioned | 2018-10-16T13:19:57Z | - |
| dc.date.available | 2018-10-16T13:19:57Z | - |
| dc.date.issued | 2018-09 | - |
| dc.identifier.citation | MIRANDA, Antonio Carlos de Oliveira et al. Modeling 2D surface to 1D through-crack transitions using 2D point load weight function. In: INTERNATIONAL CONFERENCE ON CRACK PATHS, 6., 2018, Verona, Italy. | pt_BR |
| dc.identifier.uri | http://repositorio.unb.br/handle/10482/32818 | - |
| dc.language.iso | Inglês | pt_BR |
| dc.rights | Acesso Aberto | pt_BR |
| dc.title | Modeling 2D surface to 1D through-crack transitions using 2D point load weight function | pt_BR |
| dc.type | Trabalho | pt_BR |
| dc.subject.keyword | Materiais - fadiga | pt_BR |
| dc.subject.keyword | Função de peso de carga pontual | pt_BR |
| dc.subject.keyword | Rachadura | pt_BR |
| dc.rights.license | Autorização concedida ao Repositório Institucional da Universidade de Brasília (RIUnB) pelo Prof. Dr. Antonio Carlos de Oliveira Miranda, em 28 de setembro de 2018, para disponibilizar o trabalho, gratuitamente, para fins de leitura, impressão e/ou download, a título de divulgação da obra. | pt_BR |
| dc.description.abstract1 | Part-through surface or corner 2D cracks are commonly found in structural components. To
model them assuming that the shape of their fronts is approximately elliptic is a quite reasonable hypothesis
supported by fractographic observations, but their transition to a 1D through-crack normally is not properly
addressed in fatigue life predictions. Although experimental data reveal that the frontier of 2D superficial
cracks essentially retain their elliptical shape as they gradually grow into a through-crack, it is usual to assume
they are immediately transformed into a 1D through-crack when their depth reaches the cracked component
thickness. This oversimplified approximation may create a large jump in stress intensity values, leading to
excessively conservative fatigue crack growth predictions, or else the crude shape jump hypothesis may
induce false overload events that can much affect fatigue crack growth retardation models, leading to
inadmissible non-conservative life predictions. To minimize such problems, a crack propagation strategy,
based on a point load weight function, is proposed and verified by 2D crack propagation tests in two different
materials, 4340 steel and polycarbonate (PC). | pt_BR |
| dc.identifier.orcid | https://orcid.org/0000-0002-5225-7428 | - |
| dc.identifier.orcid | https://orcid.org/0000-0003-0247-9812 | - |
| dc.description.unidade | Faculdade de Tecnologia (FT) | - |
| dc.description.unidade | Departamento de Engenharia Civil e Ambiental (FT ENC) | - |
| Aparece nas coleções: | Trabalhos apresentados em evento
|
