#9 x 3/4" Expanded Metal Strength

[MechEng13]

I have been trying unsuccessfully to find the strength and/or deflection capability of the above material. I have been tasked with determining the load rating for some shelves that were made in house. I cannot find anything relating the strength of #9 expanded metal, I have been able to find up to #7, but nothing above. Anyone familiar with Expanded metal that could point me in the right direction.

Thanks,


Alan M. Etzkorn
Project Develpment Engineer
Wabash National Corp.

http://www.wabashnational.com

 

[amorrison]

OT but Perforated at ... thread2-120690

useful ?

 

[amorrison]

http://www.naamm.org/emma/

http://www.arcat.com/arcatcos/cos41/arc41709.cfm

http://www.awci.org/buyersguide/index.pl?id=95

All above obtained by Googling expanded metal association

 

[MechEng13]

amorrison4

Thanks for the links, I was away from the office for the last 2 days.

The first link for NAAMM, EMMA, gave me the same chart that I found on the AMICO website. Still nothing above #7. Our company frequently uses #9 Expanded metal for shelving Decking and for catwalks. I know that the strength is sufficient for the purpose that we are using, however I need to come up with the actual safe load rating, and withou having the direct information for #9 that is becoming difficult to do.

Thanks again,


Alan M. Etzkorn
Project Develpment Engineer
Wabash National Corp.

http://www.wabashnational.com

 

[JStephen]

Have you checked McNichol's catalog or website?

The strength could be somewhat variable. With a fairly flexible material, you can assume all loading is carried in bending (gives low allowable load) or that it is carried by catenary action (gives high allowable load). If all else fails, actual testing should be fairly cheap- set up a section of it, start stacking cinder blocks on it. You may find deflection is the limiting factor.

 

[MechEng13]

JStephen,

Yes I have checked the McNichol's website, it gives the same information as the EMMA website, load's and deflections up to #7 Expanded metal.

I am assuming that deflection is the limiting factor, most of the charts I have seen show that a #7 Expanded metal with a 48" spread will handle approximately a 400lb uniform load with less than 1/4" deflection. I would still like to get information on #9 to be able to calculate it, even if I do an actual test to verify the calculated results.

Thanks,


Alan M. Etzkorn
Project Develpment Engineer
Wabash National Corp.

http://www.wabashnational.com