In article om, Bob Kuykendall
says...

Earlier, Capt. Geoffrey Thorpe wrote:

So, like, you are suggesting that he should go with the Handyman's secret
weapon? Would he have to use the whole roll to make it strong enough?

Heh, I hadn't thought of it that way. Some interesting material for
thought there!

One of the things I've been doing for fun lately is proof-loading bits
of rock climbing gear to see what they do under load. My latest test
was this series on a Ukrainian (sp?) camming anchor:

http://www.rockclimbing.com/cgi-bin/...15428;#1515428

However, I have seen no such test results for good ol' duct tape. What
are its ultimate and yield strengths in ksi and kn? It's Young's
Modulus at 0- 45- and 90-degrees? Peel strength? Which brands are
strongest? Weakest? Inquiring minds want to know!

Once we have that data in hand, we can build a substitution table that
shows how many plies it takes to substitute for various thicknesses of
4130, 2024-T3, 6061-T6, and 7075-T6. An Akaflieg student (a real one, I
mean) can write a thesis on computational methods for analyzing duct
tape laminations, specifically addressing the previously
hard-to-quantify factors of tooth marks, thumbprints, and those places
where it folds over and sticks to itself. AC43.13 change 2e will
address the repair of duct tape laminates, with specific reference to
brand-name materials that went off the market in 1974.

Hmmm I guess we would need to know the section modulus as well and the moment of
enertia of th section .Maybe a composite of duct tape and cardboard would give
better stifness .Ahhhh the possibilities are endless :-)

Chuck (tape 'er down boys tape 'er down ) S