Re: [MW:29869] Regarding Weld area calculation for branch reinforcement as per ASME B 31.3

I tried in PV Elite  software for shell to nozzle reinforcement calculation and there by increasing the fillet weld leg beyond the code limits , the reinforcement area got increases . So here the software results were opposite to what you recommended. 

Please advise. 

On Wed, Jul 17, 2019 at 9:54 PM George Dilintas <dilintas@gmail.com> wrote:

No, the calculations have to be based on the minimum fillet weld size given by the code

Στις Τρί, 16 Ιουλ 2019 στις 8:52 π.μ., ο/η atul khatri <atul.mnnit@gmail.com> έγραψε:

Hello experts,

As per clause 304.3.3 of ASME B 31.3 (Reinforcement of welded branch connections), Area A4 is the area of other metal provided by welds and properly attached reinforcement.

While calculating the weld area , the minimum value of tc=0.7 Tb or 6mm (1/4 in.) ,except that larger dimensions may be used if the welder has been specifically instructed to make the welds to those dimensions.

Now my query is -- 

In case if welder has gone with higher weld thickness and weld throat is coming more than 6mm, than the weld area for reinforcement should be calculated based on higher thickness or restricted to 6mm only ?

Thanks and regards

Atul Khatri

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Dr. Georgios Dilintas,

Dipl. Ing. In Aeronautic and Space Engineering

Ph.D in Mechanics of Solids - Computational Mechanics

A.I.S, A.N.I, IRCA Lead Auditor

Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

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