A two-dimensional inverse crack tip element for shape sensing and structural health monitoring

Inverse Finite Element Method (iFEM) is a powerful tool for shape sensing and structural health monitoring of marine structures and has several advantages with respect to some other existing approaches. However, current iFEM formulation is not suitable for marine structures having pre-existing cracks due to stress singularities at the crack tip. In this study, a two-dimensional inverse crack tip element formulation is presented. The element is suitable for thin structures under in-plane loading conditions. The inverse crack tip element allows determination of Stress Intensity factor values at the crack tip. To validate the accuracy and demonstrate the capability of the inverse crack tip element, six different numerical cases are considered for different geometry, loading and boundary conditions. iFEM analysis results are compared with regular finite element analysis results as the reference solution and very good agreement is observed between the two solutions demonstrating the capability of the current iFEM approach.

• Record URL:
  • https://doi.org/10.1016/j.oceaneng.2023.116287
• Record URL:
  • http://www.sciencedirect.com/science/article/pii/S0029801823026719
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00298018
• Supplemental Notes:
  • © 2023 The Author(s). Published by Elsevier Ltd. Abstract reprinted with permission of Elsevier.
• Authors:
  • Li, Mingyang
  • 0009-0004-0767-9420
  • Oterkus, Erkan
  • Oterkus, Selda
• Publication Date: 2023-12-1

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: 116287
• Serial:
  • Ocean Engineering
  • Volume: 289
  • Issue Number: 0
  • Publisher: Pergamon
  • ISSN: 0029-8018
  • EISSN: 1873-5258
  • Serial URL: http://www.sciencedirect.com/science/journal/00298018

Subject/Index Terms

• TRT Terms: Finite element method; Marine engineering; Stresses; Structural health monitoring
• Subject Areas: Bridges and other structures; Marine Transportation;

Filing Info

• Accession Number: 01903970
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 3 2024 9:13AM