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Tensile and compression of plywood 45 degrees to the grain?

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HumanPoweredDesigner

Well-Known Member
Joined
Sep 6, 2009
Messages
1,030
Location
Arizona
I know how to calculate compression and tension of plywood 0 degrees and 90 degrees to the grain. But what about 45 degrees? Is it weaker that way? I would think the layers would tend to shear apart, but then they do have a lot of contact surface area, so maybe it is not a problem.

Can plywood almost be thought of as uniform like metal, in the planes of the grains?
 
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