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  1. jczarne

    Need help with Principal Stresses Field Output equation

    I want to plot the Gerber Interaction Formula for fatigue life requirements in Abaqus. If I go to field outputs and create my own field output is there anyway to make an equation using the principle stresses. The Gerber equation is alternat stress/ + (mean stress/yield stress)^2 =...
  2. jczarne

    Abaqus FEA - Principal Stresses Field Output Question

    I want to plot the Gerber Interaction Formula for fatigue life requirements in Abaqus. If I go to field outputs and create my own field output is there anyway to make an equation using the principle stresses. The Gerber equation is alternat stress/ + (mean stress/yield stress)^2 =...
  3. jczarne

    FEA Theory Question

    I am relatively new to FEA. I am reading a intro book to FEA and I have a few questions. 1) How do I figure out how many rigid body, constant strain or any other motions there are in an element X.
  4. jczarne

    Error-Inactive Degrees of Freedom

    Hi, Scenario: I have a rectangular bone plate bar in which half of it is fixed and I want to see the torsion stress as the bar is twisted I am applying a moment to the plate (6x2x1) at the 2in end at one of the ends(the midpoint of the 2in side). It is giving me an error of...
  5. jczarne

    Applying moments

    What is the best way to add a moment to a rectangular plate 6x2x1 in? I am new to abaqus and I am not sure how to apply a moment in order to get rotation at one end of the plate. Please give me the beginner instructions and advice. Thanks much appreciate it a lot, Jerry
  6. jczarne

    Loading-Applying Loads

    Hello, I am new to abaqus. I have an example and perhaps someone could assist. Example 1: Rectangular plate 6x2x1 in I want to apply a uniform load on one end of the plate in the negative z direction. What is the best way to simulate a bending test? a)Should I apply the load at the...
  7. jczarne

    Please HELP ASAP Creating a moment rectangular plate in torsion

    What is the best way to model a rectangular plate in rotation with a moment? The plate it attached to a base with screws and I want to test the plate in rotation. Where would I put the moment...how can I add a moment to one end of the plate and have the rest of it fixed? ==I====I== Plate...
  8. jczarne

    HELP!--Inactive Degrees of Freedom in Abacus/CAE

    I am attempting to model a plate that is twisting about the x axis. I want to restrain half of the plate about the y mid axis and then add a moment to the free end to simulate twisting. When I restrain half the plate and run it everything works fine but then when I add the moment to the end...
  9. jczarne

    Loads and BC's in Abacus/CAE

    Loads: How do I set a uniform load, pointing down (negative z direction), on the edge of a 3D rectangular plate? For example in a 3pt or 4pt bending test. BC's: If my plate has 6 screw holes (3 on one side and 3 on the other) how do I fix 3 of the holes (half the plate) so I could test the...
  10. jczarne

    Need help with Abaqus/CAE modeling: 4pt bending and twisting of plate

    I am modeling a 3D bone plate and I am having trouble setting up the conditions. the diagram looks like this eg. _________________ ( O O O O O O ) (_________________) sort of. rectangular, 6 holes symmetrical about the long axis and the axis perpendicular to that First I want to model...

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