P37 FPSO Fatigue Life Extension of Pallets Stools
Fatigue life extension has been achieved by ultrasonic peening in high stressed areas of pallet stool welds on the cargo deck of the P37 FPSO. The treated brackets welds are…
Ultrasonic Peening Treatment of welded connections on uranium ore sieve.
In order to stand the high frequencies which welded connections on these components are subjected to ultrasonic peening treatment has been applied. The treatment enhanced the high cycle fatigue resistance…
Ultrasonic peening treatment of attachments – Met Mast
The aim with this report is to describe the ultrasonic peening treatment of welded attachments carried out offshore on a Met Mast at elevation +45 m and above. A description…
Ultrasonic peening treatment of welded connections on Met Mast
The aim with this report is to describe the ultrasonic peening treatment of welded connections on Met Mast Module 5 structure carried out at HadFab workshop in Tranent, Scotland. A…
Ultrasonic Peening Treatment of nozzles welds on pressure vessel
Ultrasonic peening treatment according to LETS Global Life Extension Procedure was carried out onshore on several pressure vessels. The specific location for the treatment is the weld connection between the…
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Ultrasonic peening of X70 and X100 steel pipe fatigue test specimens
The aim with this report is to describe the ultrasonic peening treatment of X70 and X100 steel pipe fatigue test specimens carried out at CSM Laboratories in Rome. A description…
Post weld treatment Implementation on bridges with special focus on HFMI
Post weld treatment is a measure of fatigue enhancement of steel and aluminum structures and is today a common procedure in many industries due to the substantial improvements that is…
Ultrasonic peening of girth welds on steel pipe St 590
Design and/or service stresses in welded structures subjected to fatigue loads are limited by the fatigue strength of welded joints. The relative poor fatigue strength of these weld joints can…
NEPTUNE TLP: UP treatment of pontoon brackets on C1
Ultrasonic peening has been applied to fatigue sensitive weld connections on Neptune TLP. The fatigue sensitive weld connections consisted of six brackets which transfer loads from pontoons to main structure.…
FPSO Triton: UP treatment of Side Shell Longitudinal
FEA calculations demonstrated critical fatigue lives for some welded connections in WBT (water ballast tank) both in P and S (Portside and Starboard). A total of six WBT will be…