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Would a stacked honeycomb sandwich panel work?
Would a stacked honeycomb sandwich panel work?
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Would a stacked honeycomb sandwich panel work?
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BigChief
BigChief
posted 9 Years Ago
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Let's say I was going to make a sandwich panel:
---3 layers of carbon fiber---
---1-inch nomex honeycomb---
---3 layers of carbon fiber---
What if I instead made:
---2 layers of carbon fiber---
---half-inch nomex honeycomb---
---2 layers of carbon fiber---
---half-inch nomex honeycomb---
---2 layers of carbon fiber---
Both sandwich panels total the same amount of material and weight... would the second option be as stiff/strong?
Are there any best practices on how many layers of carbon fiber to honeycomb would give the best strength-to-weight ratio? It would be nice to have a general idea without resorting to FEA tools.
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Fasta
Fasta
posted 9 Years Ago
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BigChief (30/11/2016)
Thank you for the help. If I kept the 3 layers on both the top and bottom and put a single 7th layer of prepreg carbon fiber in the middle between the two sandwich panels (to give them both a surface to adhere to), then it shouldn't be significantly weaker than the first proposal, correct?
That's right although some might consider that joining honeycomb like this could be a structural risk.
I know I said the core is neutral but it still transfers loads from one side to the other. You really need to satisfy yourself that it is ok with a small test or other?? It likely is ok but you can see that a join like this is somehow a disruption to the honeycomb as the cells will not likely match up like a full 1" thick would be. Foam cores can be bonded without concern.
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9 Years Ago by
Fasta
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Would a stacked honeycomb sandwich panel work?
BigChief
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9 Years Ago
Generally this is not any stronger. Usually you can consider the middle of the sandwich as a...
Fasta
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9 Years Ago
Thank you for the help. If I kept the 3 layers on both the top and bottom and put a single 7th layer...
BigChief
-
9 Years Ago
[quote][b]BigChief (30/11/2016)[/b][hr]Thank you for the help. If I kept the 3 layers on both the...
Fasta
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9 Years Ago
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