Tuesday, April 23, 2019

Re: [MW:29507] Geometric Unsharpness and discountinuity size rel

Hareesh

https://www.sciencedirect.com/topics/engineering/geometric-unsharpness
Regards, 
S.SENTHILKUMAR 

On Tue, 23 Apr 2019 at 11:17, Hareesh K V
<hareesh13h@gmail.com> wrote:
Dear Sir, 

"Answer is  NO "

Code reference please. 

"To minimise the unsharpness code given acceptable value. "

That is what I mentioned that the Ug as established by procedure qualification....

I request an open discussion and logical approach on this topic...

Regards, 

Hareesh K V





On Tue, Apr 23, 2019, 9:16 AM SENTHILKUMAR SWAMINATHAN <skumarswami@yahoo.co.in> wrote:
Answer is  NO 
To minimise the unsharpness code given acceptable value. 


On Mon, 22 Apr 2019 at 3:28, Hareesh K V
Dear Group Members,

Related to : Radiography Examination 

Can we add the value of geometric unsharpness to the discountinuity size acceptability value for accepting a discontinuity. 

Governing codes: 
ASME BPVC Sec V & ASME B 31.3

Example. 

Say Up to 2mm porosity is acceptable as per the code.

We have established the geometric unsharpness value by procedure qualification of the technique and observed as 0.2

My question is, can we accept a porosity of 2.4mm by adding (0.2x 2times Ug for both the sides of the discountiuity) the geometric unsharpness to the acceptability value of 2mm.

Please advise with code references or code interpretations. 

Regards, 

Hareesh K V
8547859202

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