Yield Strength and Thickness Effect on Fatigue Strength of Thermal Cut Plate Edges

Start Page
3032
End Page
3040
Citation
33rd International Ocean and Polar Engineering Conference (ISOPE 2023)
Contribution to Conference
33rd International Ocean and Polar Engineering Conference, ISOPE 2023  
Scopus ID
2-s2.0-85188671590
ISSN
10986189
ISBN
9781880653807
The increasing size of container vessels is accompanied by an increase of plate thicknesses as well as the extensive use of higher tensile strength steels. For large plate thicknesses as well as high yield strengths, the influence of these parameters on fatigue strength of thermal cut plate edges is not well validated. This paper describes results based on fatigue tests for specimens with yield strengths of 355 to 460 MPa and plate thicknesses of 25 to 80 mm. The specimens were fabricated using gas and plasma cutting as well as usual post-treatment methods. The objective of the investigations was to verify and, if suggested by the results, to modify the current fatigue assessment procedures for thermal cut plate edges.
Subjects
Fatigue strength
fatigue tests
free plate edge
gas cutting
high tensile strength
plasma cutting
thick plates
DDC Class
620: Engineering