Tensile Strength of Copper Wire

[jgraham114]

I'm currently working on a stone panel job. Some of the stone is attached to the support structure with copper wire. I need to know the allowable tensile strength of typical copper wire. I'm having trouble finding the data.

 

[rb1957]

buy some and pull it ...

googling "strength of copper wire" got some relevent hits ...
from wiki Q&A, with sensible cavets, 32ksi (i'd use 16ksi as a design guide)

 

[boo1]

ASTM Specifications B1-56, B2-52, and B3-63
• B-1 Hard-Drawn Copper Wire.
• B-2 Medium-Hard Copper Wire.
• B-3 Soft or Annealed Copper Wire.

typical rated strength

http://www.southwire.com/ProductCatalog/XTEInterfaceServlet?contentKey=prodcatsheet46

 

[Archie264]

That's how it's commonly attached and they've probably been doing it that way since Julius Ceasar's day, if not before. That's not to say don't run the numbers, but do take some comfort in knowing that if an experienced stone mason is involved he may well have hung many such panels that way over his career.

 

[Archie264]

Here's a link to some guidance on the issue from the Marble Institute of America. It's incomplete and it doesn't list specific tensile capacities, but there is some relevant information in sections 2.1.1 through 2.1.5.

http://www.quarryc.com/pdf/Guides.VerticalSurfaces.pdf

 

[MiketheEngineer]

Call the mfg??

 

[jgraham114]

I know it's going to work but I am not the PE signing this and I have to prove through calcs that it works. I'm going to use the minimum value in a Mech. of Materials text book. It's an interior panel and only seeing 5 psi wind pressure.

Thanks

 

[MiketheEngineer]

Then dental floss would probably work!!

 

[dhengr]

But, any dentils are probably on the outer surface of the stone panels, not on the back surface. So the floss probably won’t work.

 

[kingnero]

attached a scan from Budinski's book "engineering materials: properties and selection".
Might be of interest, however it emphasises on high-strength Cu.