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News

Submarine rescue vehicle structural assessment

QinetiQ : 06 February, 2014  (Application Story)
The NATO submarine rescue vehicle has undergone a structural assessment regarding fatigue and fracture mechanics by QinetiQ
Submarine rescue vehicle structural assessment

QinetiQ has carried out a fatigue and fracture mechanics assessment of NATO’s submarine rescue vehicle, part of the NATO Submarine Rescue System (NSRS), a multi-national project that delivers rescue capability primarily for the partner nations of France, Norway and the UK and to NATO and allied nations.

QinetiQ’s Marine Structural Analysis & Technical Services team was commissioned to conduct a structural integrity review of the submarine, including a stress-life fatigue assessment, which evaluated the welded joints of the pressure hull against the relevant design standards, and a probabilistic assessment of the likelihood of failure by fatigue. The assessment, which was accepted by Lloyds Register and the UK MOD Naval Authority,  demonstrated  that  the SRV would only require visual inspections, rather than complex pressure testing,  which would have taken it out of service for six months.

“QinetiQ carried out an excellent series of studies applying their expert knowledge in metal fatigue.  They established that the hull could be subject to a visual inspection regime.  The report that QinetiQ submitted was reviewed by both Lloyds Register and the UK MOD Naval Authority who endorsed its conclusions,” observed Ben Duke, NSRS Technical Manager, MOD.

“QinetiQ are one the world’s leading providers of marine structural analysis and technical services with many years of experience.  We have worked on a wide range of surface ships and submarines, including large glass reinforced plastic (GRP) mine hunters, and submersibles such as the NATO Submarine Rescue System (NSRS),” commented Vittorio Vagliani, Head of Structures & Survivability, QinetiQ.

QinetiQ Marine Structural Analysis & Technical Services has been delivered to a wide range of global customers in the defence and commercial marine industries for over 20 years.  Services delivered include structural analysis, finite element modelling and analysis, structural integrity and engineering critical assessments, the evaluation and validation of materials, fatigue and fracture analysis and prediction and non-destructive evaluation.  These services are based on a unique mix of theoretical and empirical solutions, leading edge tools, backed-up with over 40 years of experimental validation and knowledge.

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