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  1. LOUDOG

    Choosing Time Steps

    Does anyone have any tips on choosing time steps and other settings when doing Static Nonlinear analysis? Currently I have a large model of a tank using shell elements. I am using a nonlinear analysis because inside the tank their are large flat baffle that undergo an upset hydrostatic pressure...
  2. LOUDOG

    Drawing Ellipse

    Is it possible to draw an ellipse in FEMPRO. I am trying to do an analysis on a horizontal atmospheric pressure vessel with semi-elliptical heads. It is quite long and I am concerned about the saddles, but I dont want to use ASME calculations, because I want to try to make the vessel as cheap as...
  3. LOUDOG

    Appendix 2 Flange Strategy

    I have not done many designs on very large flanges and would like some advice. I have a customer who has requested that their vessel have a bolt on head. The vessel has a 36" ID, and a design pressure of 800 psi. What is the most economical type of flange to attach. I am using COMPRESS, but I...
  4. LOUDOG

    How does ALGOR deal with yielding?

    It occured to me today when running an analysis that produced 300,000 psi that i did not know if ALGOR does any yielding analysis. I am assuming that if you are doing a linear stress analysis that the minute you have stresses past the yield point of the material, then the analysis will not be...
  5. LOUDOG

    Cyclic Symmetry

    I have a very largy model that I would like to use cyclic symmetry on. About 100' in diameter. It is a cyclic pattern that repeats itself 43 times. I have a 3-D model, but cannot figure how I can add the symmetry constraints.
  6. LOUDOG

    Suggested Books on Radiant and Covective Heat Exchanger Design

    As the subject states, I would like to know if there are any books out there that give design guidlines for heat exchangers that do both radiant and convective heat transfer. This would be for something like an OTSG or a direct gas line heater.

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