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Off-Axis Poisson Ratio interpretation

Off-Axis Poisson Ratio interpretation

Off-Axis Poisson Ratio interpretation


I am working on some graduate level coursework and I am finding an off-axis Poisson ratio for a lamina is as high as 0.55 at a certain angle. I have a few references that show similar trends (Gibson's principles of composite material mechanics and this one here https://ecm-academics.plymouth.ac.uk/jsummerscales...). I cant get away from the idea that Poisson ratio cant exceed 0.49... but yea I get it, its not an isotropic material. What's the interpretation of this? Is this expected?

RE: Off-Axis Poisson Ratio interpretation

Yes, it is expected.

RE: Off-Axis Poisson Ratio interpretation

because its not isotropic

another day in paradise, or is paradise one day closer ?

RE: Off-Axis Poisson Ratio interpretation

Thanks for your replies, are there expected boundaries on these values then or are they just a direct result of calculated values in the lamina?

RE: Off-Axis Poisson Ratio interpretation

Hey guys...

I wonder if this could also indicate some difficult to deal-with interlaminar forces that could require unique 'thru-reinforcement'???

Regards, Wil Taylor
o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation,Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", Homebuiltairplanes.com forum]

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