This paper outlines an inspection updating approach for such predictions. While existing pass-fail fatigue approaches provide a simple design-oriented metric to limit the amount of fatigue cracking observed in service, these approaches struggle to make accurate mid-life prediction of future fatigue performance and associated structural risks and costs. ![]() ![]() Structural fatigue cracking in lightweight high-speed vessel structures is a central maintenance and lifecycle costing concern. The work supports navies to maximise the capability of their fleets in an unpredictable and dynamic environment. A case study demonstrates the effectiveness of the method, to evaluate the flexibility of naval ship design options for early life-cycle decisions. This paper presents a method for naval ship design flexibility assessment to support the adoption of batch building strategies. Key attributes of ship design flexibility include structural performance, particularly the fatigue life, and stability performance. To accommodate design changes in batches of a class build program, ship design flexibility needs to be factored into the acquisition processes. ![]() One strategy to manage such changes is batch building. Therefore, ships may be operated differently to the original requirements, or new technologies may need to be integrated into the original design over its lifecycle. Naval ships have significantly longer lifecycles relative to the evolving global strategic environment and technology refresh rates.
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