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Author: deajohn5556
Time: 01/24/11 08:06 PST
This is a reply to message no. 21316 by jssb
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Tensile strength

Tensile strength is measured by a tensile testing machine with  load cell.  A specimen is loaded to failure and the load divided by the specimen cross section area is the tensile strength.

 

I am not sure what you mean by displacement.  If you know displacement under tension and the specimen length, then

Y = PL/AE   = tensile strength X L/E  where E is moduklusof elasticity.  Butthis only works if linear, like to the yield point, but not to ultimate (material would be in plastic zone after yield) , so you can only get tensile yield strength, unless the material has no yield  (like glass) .

The displacement would also have to be measured with strain gage for accuracy, and it strain you are measuring ( displacement/length).

 

 

 

Ordinarilt .t he strenght is

 

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