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  • Users: fem.fan
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  1. fem.fan

    Saddle reaction due to transversal loads (wind)

    hi, i´ve been struggling for a few days trying to understand why does pv elite and Compress (using the formula given by Moss, see the image below) take into account the reaction on the saddle due to transversal wind load when computing bending momentes that act on the vessel. i looked this...
  2. fem.fan

    FEA: Boundary conditions when modeling nozzle connections in pressure vessels

    hi, every time i model a nozzle connection i come across the same problem: " how much shell to model". i have tried many options but none of them quite satisfies me. if i model the whole circumference of the sheell with solid elements, it takes a lot of elements and thus, a great computational...
  3. fem.fan

    ASME XIII Section 2 DBA: Mesh convergence for Plastic strains

    Hi, i am performing an elastoplastic analysis for a vessel nozzle connection according to appendix 46 of ASME XIII Div. 1 using part 5 of ASME XIII div 2. my problem is that when simulation for plastic collapse, i can´t get the plastic strains to converge when refining the mesh. in other...
  4. fem.fan

    Local failure assessment of nozzle junctions - weld sharp edges

    Hi, i need to analyze the nozzle junction of a pressure vessel (designed by ASME XIII div. 1) according to appendix 46 (following the steps of div. 2 part 5). i am using an elastic plastic model. i´ve searched a lot of threads of this subject but none of them answers my particular inquiry...

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