loading page

Numerical tool for the analysis of CTOD curves obtained by DIC or FEM
  • +2
  • Bruno Marques,
  • Diogo Neto,
  • Fernando Antunes,
  • Jose Vasco-Olmo,
  • Francisco Diaz
Bruno Marques
Univ Coimbra, Centre for Mechanical Engineering, Materials and Processes (CEMMPRE)
Author Profile
Diogo Neto
Univ Coimbra, Centre for Mechanical Engineering, Materials and Processes (CEMMPRE)
Author Profile
Fernando Antunes
University of Coimbra
Author Profile
Jose Vasco-Olmo
Universidad de Jaen
Author Profile
Francisco Diaz
Universidad de Jaen
Author Profile

Abstract

Typically, the Crack Tip Opening Displacement (CTOD) is used only to quantify the crack closure phenomenon. However, more information about crack tip phenomena can be extracted from the CTOD curves, which can be used for a better understanding of fatigue crack growth. The main objective here is the development of a numerical tool for the automatic analysis of CTOD plots, which can be obtained either numerically using the Finite Element Method (FEM) or experimentally using Digital Image Correlation (DIC). The parameters extracted are the elastic and plastic CTOD in loading and unloading regimes, the corresponding load ranges, the crack opening and closure levels and the dissipated energy. This tool is expected to promote a fast and efficient analysis of DIC and FEM results, facilitating the implementation of CTOD analysis in the fatigue community.

Peer review status:ACCEPTED

20 Jul 2020Submitted to Fatigue & Fracture of Engineering Materials & Structures
21 Jul 2020Submission Checks Completed
21 Jul 2020Assigned to Editor
22 Jul 2020Reviewer(s) Assigned
10 Aug 2020Review(s) Completed, Editorial Evaluation Pending
14 Aug 2020Editorial Decision: Revise Minor
24 Aug 20201st Revision Received
24 Aug 2020Submission Checks Completed
24 Aug 2020Assigned to Editor
25 Aug 2020Reviewer(s) Assigned
25 Aug 2020Review(s) Completed, Editorial Evaluation Pending
05 Sep 2020Editorial Decision: Accept