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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Uniaxial compression test on ceramic green compact with bending consideration using digital image correlation

Texto completo
Autor(es):
de Melo, Caiua Caldeira [1] ; Furlan, Matheus [2] ; Hild, Francois [3] ; Schmitt, Nicolas [3] ; Canto, Rodrigo Bresciani [2, 1]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Fed Univ Sao Carlos UFSCar, Grad Program Mat Sci & Engn, PPGCEM, BR-13565905 Sao Carlos, SP - Brazil
[2] Fed Univ Sao Carlos UFSCar, Dept Mat Engn DEMa, BR-13565905 Sao Carlos, SP - Brazil
[3] Univ Paris Saclay, ENS Paris Saclay, CNRS, LMT Lab Mecan & Technol, 4 Ave Sci, F-91190 Gif Sur Yvette - France
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Powder Technology; v. 376, p. 136-148, OCT 2020.
Citações Web of Science: 0
Resumo

A uniaxial compression test was performed on a green compacted alumina powder. Using Digital Image Correlation (DIC), displacement fields of two perpendicular surfaces of the specimen were measured showing unavoidable bending effect. A constitutive model was calibrated through three Finite Element Model Updating approaches. First, an analysis was performed using average axial strains assessed via DIC and resultant forces to identify the constitutive model. Then, a plane stress analysis was conducted out using the displacements of the boundaries of the regions of interest for each camera separately to obtain the sought parameters. Last, a 3D analysis was carried out using the multi-point constraint method to link displacement fields of both surfaces. Because of bending, the first two approaches give rise to two sets of different parameters. The analysis that considers the 3D nature of bending leads to the set of parameters with the highest degree of confidence. (C) 2020 Elsevier B.V. All rights reserved. (AU)

Processo FAPESP: 18/02801-4 - Identificação de modelos de material para a simulação computacional da prensagem de pós
Beneficiário:Rodrigo Bresciani Canto
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 18/15266-0 - Detecção e quantificação de mecanismos de fratura de cerâmicas em temperatura ambiente e elevada via correlação de imagens digitais
Beneficiário:Rodrigo Bresciani Canto
Linha de fomento: Auxílio à Pesquisa - Regular