On Oct 10, 10:03*pm, -MIKE- wrote:
fftt wrote:
On Oct 10, 4:54 pm, -MIKE- wrote:
depends on the loading conditions & assembly
an ultimate number or an allowable (like a working load) number?
allowable *in timber like ~100lbs
ultimate load in timber, probably *400lbs
ultimate *load in a test machine...depending on the steel
condition */ *alloy; *maybe 800+ lbs
cheers
Bob
I'm not talking about working loads or allowable anything... I never was.
I'm talking about the weight requite to shear (tear off like being cut,
or whatever the proper scientific terminology is) a 16d nail.
Is that what that 800 number is?
Can you point me to any video.pics on the web that show the machine/test.
Are you asking about the nail ...all by itself, no timber? * Mounted
in steel test machine by some sort of fixturing?
A 16d nail has about .02 sq in cross section (as per another poster's
calc) ....so pick your nail material ultimate shear stress & mutlitply
by .02
But the shear strength of a 16d nail isolated by itself in a test
machine is pretty meaningless since a 16d nail will never be used in
that fashion unless you plan to use it as a shear pin in a lawn mower.
cheers
Bob
Yes, the test situation, mounted in a testing machine.
There are a lot of testing situations that never happen in the real
world, but they still do the tests. :-)
--
* -MIKE-
* "Playing is not something I do at night, it's my function in life"
* * *--Elvin Jones *(1927-2004)
* --
*http://mikedrums.com
*
* ---remove "DOT" ^^^^ to reply
There are a lot of testing situations that never happen in the real world, but they still do the tests. :-)
Back to your old behavior, I see .....writing nonsense & digging
holes.
The tests are done for a reason, to confirm or determine material
properties. To determine system performance.
Perhaps you could give an example as to one of these "tests".
You pulled a BS number out of your ass (or faulty memory) then
continued to insisted it was right & that it made sense.
You then switched to hoping your number was "close to right" .....at
least in "some" situation.
Even considering the number from the most optimistic & unrealistic
condition ....you're still off by a factor more than 10.
cheers
Bob