drednought Posted December 22, 2011 Report Share Posted December 22, 2011 I was thinking how strong is epxoy ply is compaired to other materials in boat building and found this on the net,very interesting. Better resistance to stress - Wood is the most resistant to constant direct force... the kind like the structure of a boat gets due to the pressure of the water on the hull. And the faster the boat goes, the heaver the force is. One well-known test was done on various materials to find out how well they hold up under constant pressure. Each material was put under direct pressure for 1 million cycles for 30 hours at a time. Straight Fiberglass kept only 22% of original strength Aluminum kept 37% of original strength Wood with epoxy kept 64% of original strength. Quote Link to comment Share on other sites More sharing options...
oceansky Posted December 23, 2011 Report Share Posted December 23, 2011 G'day Chris, I recently conducted comparitive tests of various species of plywood and about to conduct tests on plywood with various types of fibreglass. In regards to the plywood itself test, I was actually surprised with the results, particulary the advertised densitys compared with "real" results. Also, in regards to the bending strength and Modulus of Elasticity (or stiffness), here to was a huge difference between the various species of plywood. I hope over the Xmas break to finalise my testing and maybe publishing the results here, or on our website regards Mark Quote Link to comment Share on other sites More sharing options...
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