"US Navy request raises issue about aluminum ships"
By Andrea Shalal-Esa Mar 16, 2010
WASHINGTON, March 16 (Reuters) - The U.S. Navy is seeking an analytical tool to predict problems with aluminum-hulled ships just months before it is due to announce the winner of the Littoral Combat Ship competition involving such a ship.
In a little-noticed solicitation posted on a Navy website in January, the Navy said it needed better tools to predict possible cracking on aluminum-hulled ships, especially under difficult conditions at sea. Replies are due by March 24....
Extreme Loading Events
In the solicitation, the Navy said it was facing "great challenges" in picking appropriate analytical tools and validation procedures to assure the performance and integrity of the aluminum ship structure in the presence of "unexpected extreme loading events" such as wave-slamming....
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Nice piece of reporting. As background listen to the second audio link that says “click here” at:
It’s the rest of the story. Helps to explain what the Navy might be looking at.
Also, here's a video to remind our readers what "deck-slamming" looks and sounds like: