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".