The customer asked MSC to investigate the possibility of replacing currently used cast steel brackets welded to spud pillars by high strength steel brackets.
A comparative study was executed on current and new mock-ups. Base material properties as well as mechanical properties of the connection were investigated by means of destructive testing and metallographic analysis.
The survey revealed that the use of high strength steel instead of the current cast steel would be an interesting option for new projects.
Schematic showing spud pillar
Destructive testing of weld
Microstructure cast steel
Cross section of welded bracket