TITLE

Cracking the steel failure anticipation problem

PUB. DATE
February 2005
SOURCE
Engineer (00137758);2/11/2005, Vol. 293 Issue 7668, p12
SOURCE TYPE
Periodical
DOC. TYPE
Article
ABSTRACT
This article reports that sensor technology can be used to estimate the life of steel-welded structures and give advance warning of failure, which has been developed at Cambridge-based TWI. It is claimed that the device, called CrackFirst, could help engineers to avoid unplanned downtime on a range of structures such as bridges, vehicle chassis, cranes and oil rigs. TWI project manager John Davenport explained that the system consists of a steel shim or 'coupon' that can be placed on a structure's critical joint for the duration of its lifetime. As the joint degrades over time, so does the shim, and by interrogating thin-film circuitry that is mounted on the shim, maintenance engineers can get an accurate picture of the structure's overall state. By comparing this data to initial design predictions of the structure's service life, engineers can tell precisely how much life remains.
ACCESSION #
16110638

 

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