High ductility steels for impact resistance: experimental results
conference paper
Increasing resistance against impact, either from other ships, floating objects or icebergs, will make shipping safer. Lean Duplex, which is in the stainless steel family, has high strength, and corrosion resistance. Lean Duplex is investigated focusing on its crash resistance in raking scenarios as part of an ongoing project. Material characterization is performed via tensile tests on dog bone and notched dog bone specimen. Punch tests are performed to find the fracture point at biaxial stress state. The results of these experiments provide datasets that cover a range of triaxiality, as a result of which a failure forming limit curve (FFLC) of the material is obtained. FFLC can also be created by the single parameter criterion, a plane stress reduction of the Modified Mohr-Coulomb criterion. The paper provides comparison of FFLC based on experimental results and the single parameter criteria, giving evidence on the applicability of this simple method.
Topics
TNO Identifier
874939
ISBN
9780367433130
Publisher
CRC Press/Balkema
Source title
Proceedings of the 8th International Conference on Collision and Grounding of Ships and Offshore Structures, ICCGS 2019, 21-23 October 2019, Lisbon, Portugal
Editor(s)
Soares, C.G.
Collation
4 p.
Pages
153-156
Files
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