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Over this period, we have run the largest sample so far on any of OPAL's neutron beam instruments: a 630kg section of natural-gas pipeline with a girth weld, from TWI Ltd., in Cambridge, UK.
Strains were scanned using our KOWARI strain scanner in all three principal directions in and around the weld.
No extra cuts were made in the piece, which was cantilevered from the sample stage, in order to place the weld at the centre of rotation of KOWARI.
The project is led by Elvin Eren (front right) from TWI, and the idea is to investigate the variability of mechanical properties along the circumference of such girth welds.
Published: 16/04/2012