Boat Building Forum

Find advice on all aspects of building your own kayak, canoe or any lightweight boats

Re: Defense of George's methods - examples
By:Dean Trexel
Date: 4/14/2000, 8:36 am

> While it is true that stiffer is not inherently stronger, it is wrong to
> conclude from it that stronger must be more flexible. Copper pipe, while
> much more flexible then steel pipe, is not as strong as the stiffer steel
> pipe.

The steel-to-copper comparison is more of an apples-to-oranges comparison because the materials are different. George uses a bit of kevlar, but for the most part we're comparing different thicknesses of the same materials.

Drop a brick on copper pipe, and it will dent because it is more ductile. Drop a brick on iron pipe, which is stiffer but more brittle, and it will fracture from the impact.

Dean

Messages In This Thread

Defense of George's methods - examples
Dean Trexel -- 4/13/2000, 10:24 am
Re: Stiffness good or bad
Nick Schade - Guillemot Kayaks -- 4/14/2000, 11:56 am
Re: Stiffness good or bad
Hans Friedel -- 4/14/2000, 4:12 pm
Re: Defense of George's methods - examples
Nolan -- 4/14/2000, 7:10 am
Re: Defense of George's methods - examples
Dean Trexel -- 4/14/2000, 8:36 am
Re: Defense of George's methods - examples
Nolan -- 4/14/2000, 9:39 am
Re: Defense of George's methods - examples
Dean Trexel -- 4/14/2000, 10:50 am
Re: Defense of George's methods - examples
Nolan -- 4/14/2000, 11:27 am
Re: Defense of George's methods - examples
Dean Trexel -- 4/14/2000, 1:14 pm
Re: Defense of George's methods - examples
Nolan -- 4/14/2000, 2:20 pm
Re: Yielding is not neccessarily failure.
Nick Schade - Guillemot Kayaks -- 4/14/2000, 12:21 pm
Re: Yielding is not neccessarily failure.
Nolan -- 4/14/2000, 2:24 pm
Re: Yielding is not neccessarily failure.
Nick Schade - Guillemot Kayaks -- 4/16/2000, 4:53 pm
Designing for POST failure performance
David Dick -- 4/17/2000, 10:20 am
Re: Thusly: The Perfect Kayak
Spidey -- 4/13/2000, 10:46 am
Hull speed's a bit low! (NT)
Natron -- 4/13/2000, 2:38 pm
Re: Wetted Surface is minimized
Nick Schade - Guillemot Kayaks -- 4/14/2000, 11:22 am
Re: But rolling it is a snap (NT)
Ross Leidy -- 4/13/2000, 3:11 pm