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  • Users: HansonBoye
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  1. HansonBoye

    Solidworks Simulation- Stress Linerization - Stress intensity plot interpretation

    Hi, Im new to FEA..im trying to do a stress linearization for a pressure vessel body using solidworks simulation. As you can see in the picture attached pic 1 shows the stress points and calculated membrane + bending stress between these two points. Which is around 50000 psi for von mises and...
  2. HansonBoye

    Vonmises and Stress intensity of cylinder w/ internal and external pressure and Compressive load

    Hi All, Hope somebody could clear my doubts. I'm looking to calculate the von mises equivalent stress (using distortion energy theory)and primary membrane stress intensity for a cylinder with internal and external pressure and with a compressive load on one sides as shown below. So, for...
  3. HansonBoye

    API 6A 21st Edition - Recertification Audit

    Hello , Has anybody faced Audit after the new Revision API 6A 21st Edition, Nov 2019 Please share your experience (especially on Gate Valves) Regards, Hanson
  4. HansonBoye

    API 6A Gate Valve Bonnet Flange Blot Stress

    Hi All, I have a doubt in evaluating the stress by classical methods.. I could calculate the bolt load for operating condition and gasket seating condition and calculate the stress based on the reference below, ASME Boiler and Pressure Vessel Code, VIII, Division 2, Alternative Rules, ‘Rules...
  5. HansonBoye

    Shear stress for shaft in torsion with shear pin (0.75 and 0.577 Shear factor)

    Hi, Please, can anybody explain what stress does the shear pin will see when the shaft is subjected to torsion? (See image attached) I calculated as below, Torsional Shear stress for a shaft (mild steel) = 0.75 x UTS of shaft Shear stress for the shear pin (double shear) = 2 x UTS of...
  6. HansonBoye

    Valve Body Reinforcement

    Is reinforcement calculation required for gate valves? What is the condition to do or not to do a valve body shell to outlet reinforcement calculation?
  7. HansonBoye

    API 6A 21st Ed. Gate Valves design allowables

    Hi, I am new to designing gate valves to API 6A 21st edition standard. In the process of performing design calculation, I have few questions for which I am looking for answers. 1) When defining the design allowable stresses for pressure vessel calculation or wall thickness sizing, I am using...

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