Quote:
Originally Posted by Sceptre20
Is there a reason that what look like about 6"X6" blocks of wood are used as a core instead of a solid piece of wood,I would think a solid piece would be much stronger.I have seen the blocks used many times and wondered if there is an advantage to it?
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In cored laminates, the core doesn't need bending strength, it acts to resist shear (sliding) force. The early Potter hulls had end grain balsa cores in the deck and it has almost no bending strength.
The most important factor is the bond between the core and the laminates on both sides. It's easier to get a 100% bond with small tiles of plywood in a wet layup than it is with large sheets.
Dave