Wm Watt wrote:

A sheet of paper is also thin enough to fold. Once a tear is repaired
with tape that part is stronger than the rest of the sheet. That's what
you see in a butt join. It's thicker and more rigid than the rest of
the hull. It won't flex. It won't fold. It can take more stress than
the original hull before failing. If the hull's going to fold and fail
it won't be at the butt join.

Maybe you should spend a few years learning about stress analysis before making
such ludicrous analogies. You haven't got a clue what's happening in a real
structure.

Mike

Michael Daly wrote:
Wm Watt wrote:

A sheet of paper is also thin enough to fold. Once a tear is repaired
with tape that part is stronger than the rest of the sheet. That's what
you see in a butt join. It's thicker and more rigid than the rest of
the hull. It won't flex. It won't fold. It can take more stress than
the original hull before failing. If the hull's going to fold and fail
it won't be at the butt join.

Maybe you should spend a few years learning about stress analysis before making
such ludicrous analogies. You haven't got a clue what's happening in a real
structure.

Mike

Short of desinging, building, repairing paddling, and sailing in "real
structure"s.
You'd have to come up with something more subtantial than theory and
hearsay to offer worthwhile advice. In a word, take your own advice
above substituting "real structures" for "stress analysis".

Wm Watt wrote:

You'd have to come up with something more subtantial than theory and
hearsay to offer worthwhile advice.

Theory is based on and validated by testing.

In a word, take your own advice
above substituting "real structures" for "stress analysis".

In my case, real structures include ice breakers (finite element analysis of the
USCG Polar Star when it was instrumented for ice forces on an arctic trip in
1981), offshore oil structures in the Beaufort Sea, aircraft (Canadair
Challenger (now Bombardier)) some buildings and lots of other things.

Your experience is playing in puddles with boats that never get tested.

Since you don't even know that a structure without a straight load path _must_
bend, then you don't know anything that justifies your claims to expertise.

Mike