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  • Users: boek
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  1. boek

    Stiffness of hydraulic oil

    I am trying to estimate the stiffness from the oil inside a hydraulic system. For a simple piston it is possible to estimate the stiffness using two springs, which gives a total stiffness for the oil as: koil=E1A12/V1+E2A22/V2, where E is the bulk modulus of the oil, A the piston area and V the...
  2. boek

    Plotting material curve

    I have defined a plastic material in ABAQUS. Is it possible to visualize the stress-strain curve in ABAQUS?
  3. boek

    View beam orientation

    Is it possible to view the beam orientation after it has already been assigned? I know the orientation is shown directly before a direction is assigned, but I would like to view it afterwards without reassigning the orientation.
  4. boek

    Stress range for fatigue multiaxial loading

    I am doing a fatigue assessment of a structure under multiaxial loading. The load state for the structure is similar to the one in the picture below. Loads are presumed to be in phase. I am trying to obtain a stress range to estimate the fatigue life using the principal stresses of the FEA. I...
  5. boek

    Verifying results when using contact controls stabilization

    I am running a static analysis of a structure with multiple load steps. There are multiple contact definitions. In one of the load step, the structure deforms in a way such that a gap occurs between a contact pair. One of these surfaces is latter loaded, but since there is an initial gap the...
  6. boek

    Create custom field output using the top and bottom values of a shell element

    I am trying to compute the membrane and bending stresses using shell elements in ABAQUS. I would like to plot the resulting stress distributions. Is it possible to create a custom field output using the values at the top and bottom sections?
  7. boek

    Change color of datum objects/reference points

    Is it possible to change the standard color of datums and reference points in ABAQUS? I want to switch from yellow to black.
  8. boek

    Applying a frequency dependent load for steady state dynamics

    I want to include ω in P_mag(ω) = m ω2e. Can I do this without using the amplitude feature?
  9. boek

    Applying a frequency dependent load for steady state dynamics

    I am trying to apply two loads which are frequency dependent in a steady state analysis. The forces are caused by a rotating unbalance: Fx=m ω2e sin(ωt), Fy=m ω2e cos(ωt), where, m is a mass, e the radius, t is time, and ω is the angular velocity. Is there a simple way to do this in ABAQUS?
  10. boek

    ABAQUS Python (API) - Surface normal of surface set

    That almost works! Using the getNormal() method returns the normal of the element. I need the normal to be positive in the surface direction. The getNormal() method does not give the right sign if the surface normal is opposite of the element. The positive normal direction is defined in the...
  11. boek

    ABAQUS Python (API) - Surface normal of surface set

    I have defined a surface in the CAE where one side is positive. I want to obtain the positive normal of this surface using Python scripting. Is it possible to do this in the visualization model using the OdbSet object? I do not manage to find anything in the documentation but it is possible to...

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