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Unread 30-01-2009, 13:34
Rick TYler Rick TYler is offline
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Re: Flexibility of steel alloys

To expand slightly on what Kevin wrote, stiffness varies as the fourth power of cross-section. Making it bigger will pay off faster than making it from different steel alloys.

Now, if you replaced that steel bar with a carbon fiber rod, it would be much stiffer. Not as resistant to side loads, and likely to fail in much more spectacular ways when its load limit is exceeded, but it would be stiffer.
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