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Strategies & Market Trends : 2026 TeoTwawKi ... 2032 Darkest Interregnum

GLD 378.38

+2.7%

Nov 10 4:00 PM EST

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To: Box-By-The-Riviera™ who wrote (51466)	6/17/2009 8:54:54 PM
From: ScatterShot	1 Recommendation Read Replies (2) of 217661

Whatever happened, it's still worth knowing that composites do not fail like metals. Metals have a predictable fatigue strength and it can usually be calculated when the total number of reverse stress cycles can initiate a fatigue crack followed fairly quickly by a complete failure. Composites are first subject to the manmade vagaries of production resulting in a range of characteristics. Then when failure begins, it starts much more gradually than metals. Typically known as delamination which preserves quite a bit of strength while sacrificing lots of stiffness (Young's Modulus). Visualize a tail section flopping around but still connected. Not drawing conclusions, just passing on some acquired book knowledge. Well Ok, I do have a conclusion: If they do figure out it was a composite failure, that design approach will turn out to be a lot heavier and will cost a $hitload more $.

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