Why is the industry standard in aerospace to not intall CRES (15-5PH, AISI 301, or otherwise) on CFRP. I realize that the materials have significantly different modulas of elasticity and would strain differently, therefore it would not be suggested for doublers and or large fittings, but I can not see the rational for small clips and stiffeners, etc. I see aluminum details installed on 777 floor beams all the time, and it has a much higher coefficient of thermal expansion, so it can't be for that (CRES is actually quite close to Titanium which I understand is very similar to CFRP for modulus and coefficient of thermal expansion). Any advice on this subject would be appreciated.
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