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old wire mesh denominations
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Compositepro
Chemical
It appears the per 100 sqft column is switched with the 100 sqyrd column in the posted table.
Ingenuity...
I get 42 lb/(100 sf) = 4.67 lb/(100 sy), not 3.78 lb/(100 sy)
It should be a 9:1 ratio, but the table uses an 11.11:1 ratio, or 1/0.09.
============
"Is it the only lesson of history that mankind is unteachable?"
--Winston S. Churchill
I get 42 lb/(100 sf) = 4.67 lb/(100 sy), not 3.78 lb/(100 sy)
It should be a 9:1 ratio, but the table uses an 11.11:1 ratio, or 1/0.09.
============
"Is it the only lesson of history that mankind is unteachable?"
--Winston S. Churchill
fel3 said:
fel3:
Note that I said the units of the 3[sup]rd[/sup] column - to make the numerical values correspond to the 2[sup]nd[/sup] column - should be #/yd[sup]2[/sup] NOT #/100 yd[sup]2[/sup]
And, how could a 100 sf area of mesh with a mass 42 lb only have a mass of 4.76 # for a 100 yd[sup]2[/sup] (i.e. 900 sf) of 9 times the area?
So I still stand by my above number even though I did the above at lunchtime on a project site with my HP-41CX emulator on my old iPhone5 with fat fingers
For a given wire mesh: 42 lb for a 10'x10' (i.e 100 sf) section of mesh.
So if only a 3'x3' (i.e 1 square yard) section of mesh would have a mass of: 42*9/100 = 3.78 lb/yd[sup]2[/sup] - NOTE: NOT #/100 yd[sup]2[/sup]
So if only a 3'x3' (i.e 1 square yard) section of mesh would have a mass of: 42*9/100 = 3.78 lb/yd[sup]2[/sup] - NOTE: NOT #/100 yd[sup]2[/sup]
IMHO (used to metric size) :
1 ft = 0.333 y
1 ft^2 = 0.33^2 y^2 = 0.11 y^2
42 lbs/(100 ft^2) = 42 lbs/(100 * 0.11 y^2) = 381 lbs/(100 y^2) that is 3.81 lbs/y^2 (apart the difference 3.78 and 3.81 probably due to number of wires per ft or similar)
Conclusion : Ingenuity is correct
1 ft = 0.333 y
1 ft^2 = 0.33^2 y^2 = 0.11 y^2
42 lbs/(100 ft^2) = 42 lbs/(100 * 0.11 y^2) = 381 lbs/(100 y^2) that is 3.81 lbs/y^2 (apart the difference 3.78 and 3.81 probably due to number of wires per ft or similar)
Conclusion : Ingenuity is correct
Ingenuity...
I mis-typed my response and wrote them backwards. What I meant was 42 lb/100 sy = 4.67 lb/100 sf, not 3.78 lb/100 sf. The ratio between lb/sy and lb/sf or between lb/100sy and lb/100sf should be 9:1.
Per Mathcad Prime 5.0:
My HP-48G+ gives the same answer.
============
"Is it the only lesson of history that mankind is unteachable?"
--Winston S. Churchill
I mis-typed my response and wrote them backwards. What I meant was 42 lb/100 sy = 4.67 lb/100 sf, not 3.78 lb/100 sf. The ratio between lb/sy and lb/sf or between lb/100sy and lb/100sf should be 9:1.
Per Mathcad Prime 5.0:
My HP-48G+ gives the same answer.
============
"Is it the only lesson of history that mankind is unteachable?"
--Winston S. Churchill
JedClampett
Structural
I perceive this hasn't been beaten to death, so see attached.
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