View Single Post
  #62   Report Post  
Posted to rec.woodworking
fftt fftt is offline
external usenet poster
 
Posts: 303
Default Speaking of home wood-related repairs...

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.

--

* -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




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

cheers
Bob