I assume that you are referring the material tensile test.
Step 1. On tensile test bar you need to mark gauge length as mentioned in the relevant material spec.
say 50 mm, this will be your initial gauge length L0.
After tensile test there will be increase in initial gauge length due to axial tensile load. This is called final gauge length Lf.
Step 2 Measure the final gauge length( after test piece destruction
and keeping the two halves in intimate contact)Say your Lf is 60mm.
step 3 Then your percentage of elongation will be as per this formula.
Lf-L0/L0 x 100
i.e 60-50/50 x 100 = 20%
with Regards,
Rutvik
Sr.Surveyor
TATA Projects Ltd.
--- On Tue, 3/8/10, boris ochije <borisochije@yahoo.com> wrote:
> From: boris ochije <borisochije@yahoo.com>
> Subject: [MW:6294] formula for calculating elongation
> To: materials-welding@googlegroups.com
> Date: Tuesday, 3 August, 2010, 8:13 PM
> sir pls what is the formula for
> calculating elongation in duplex pipes and
> carbon steel plates and pipes.
>
> from boris ochije
>
>
>
>
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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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