Steel and Composite Structures
Volume 58, Number 3, 2026, pages 351-361
DOI: 10.12989/scs.2026.58.3.351
Fracture characterization of naval steel ductile adhesive joints under mode I loading
Ana Álvarez , Marcelo F.S.F. de Moura , Nuno Dourado
Abstract
The increase application of adhesive bonded joints in shipbuilding requires the development of accurate and suitable methodologies to measure the fracture properties of these connections. In this work, the Tapered Double Cantilever Beam (TDCB) test was used to perform fracture characterization under mode I loading of ductile adhesive bonded joints considering naval steel adherends. Experimental fracture tests were carried out under quasi-static loading. The load-displacement curves were registered and used to obtain the Resistance-curves after post-processing analysis. In this context, two data reduction methods not depending on crack length monitoring during the fracture tests were proposed. A finite element analysis including cohesive zone modelling was performed aiming to validate the followed procedure. It was concluded that the TDCB test is a good option regarding fracture characterization of steel bonded joints, namely when ductile adhesives are used.
Key Words
adhesive joint; fracture characterization; naval steel; shipbuilding; TDCB
Address
- Ana Álvarez — Universidade da Coruñ a, Campus Industrial de Ferrol, Departamento Ingeniería Naval e Industrial, Escola Politécnica de Enxeñaría de Ferrol, CITENI, Ferrol, 15403, A Coruña, Spain
- Marcelo F.S.F. de Moura — Faculdade de Engenharia da Universidade do Porto, Departamento de Engenharia Mecânica, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- Nuno Dourado — CMEMS-UMinho, Departamento de Engenharia Mecânica, Universidade do Minho, Campus de Azurém, 4804-533 Guimarães, Portugal
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