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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

On the calibration of cohesive parameters for refractories from notch opening displacements in wedge splitting tests

Full text
Author(s):
Vargas, R. [1, 2] ; Canto, R. B. [3, 1] ; Hild, F. [2]
Total Authors: 3
Affiliation:
[1] Univ Fed Sao Carlos, Grad Program Mat Sci & Engn PPGCEM, BR-13565905 Sao Carlos, SP - Brazil
[2] Univ Paris Saclay, LMT Lab Mecan & Technol, CNRS, ENS Paris Saclay, F-91190 Gif Sur Yvette - France
[3] Fed Univ Sao Carlos UFSCar, Dept Mat Engn DEMa, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Journal of the European Ceramic Society; v. 41, n. 14, p. 7348-7361, NOV 2021.
Web of Science Citations: 0
Abstract

Cohesive elements are commonly used to describe crack propagation in heterogeneous materials with toughening mechanisms. This work aims to provide a guideline on how these fracture parameters can be calibrated using notch opening displacements (NODs) measured via digital image correlation and force data from wedge splitting tests (WSTs). Weighted finite element model updating was applied to calibrate material and boundary condition parameters in the same framework. The influence of each parameter on force and NOD data are given together with uncertainties for the calibrated parameters. Numerical results were in very good agreement in terms of splitting force, NOD, displacement and gray level residual fields. It is shown that images obtained during WSTs focusing on the crack path (i.e., hiding the loading region) can be used to drive numerical simulations and obtain cohesive parameters. (AU)

FAPESP's process: 18/15266-0 - Detection and quantification of fracture mechanisms of ceramics at room and high temperatures using digital image correlation
Grantee:Rodrigo Bresciani Canto
Support Opportunities: Regular Research Grants
FAPESP's process: 18/23081-0 - Fracture mechanisms of refractories at room and elevated temperatures analyzed with wedge splitting tests and image correlation
Grantee:Rafael Vargas Maginador
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 10/20920-9 - Use of the digital image correlation technique in the fracture energy test of refractory castables.
Grantee:Danilo Bassil Dower Stafuzza
Support Opportunities: Scholarships in Brazil - Scientific Initiation