Which is stronger for bending: tube or rod?


Which is stronger for bending: tube or rod?
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mattias
mattias
mattias
posted 12 Years Ago HOT
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Hi,

I crashed my RC airplane (again!) and broke the 6x4mm carbon fiber tube in the wings.
I'm looking at replacing it with something stronger this time. The stresses are bending only - no tension or compression length-wise.

Which of the following would be the best?

  • 6mm carbon rod,
  • 6mm (4mm inner diameter) carbon tube,
  • 6x4mm carbon tube with a 4mm rod inside?


Thanks,

Mattias
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Which is stronger for bending: tube or rod?
mattias - 12 Years Ago
     It all depends on your circumstances. 6mm of solid rod will always be stiffer than 6mm OD tube....
Warren (Staff) - 12 Years Ago
     If you strengthen the wings it will probably break somewhere else. The wings may have been designed...
wozza - 12 Years Ago
     mattias I suggest you use customized tube with optimized layup angles. These available standard...
singcomposite - 11 Years Ago

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