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  • Users: Coulomb
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  1. Coulomb

    HIDDEN LINES

    When I print my drawing (3D), the hidden lines appear, even though I turned them off in the current view?
  2. Coulomb

    Frequency Analysis

    I need to do a frequency analysis on my model, but am not entirely sure how the features in SAP work to do that (ie. what functions do I have to define?)
  3. Coulomb

    Modeling Nonstructural Components

    I am trying to model nonstructural components; hence mass that is additionally attached to the frame. I want to attach the mass to the frame with a stiff link. Hence do I draw a 2-joint link in which I specify high stiffnesses (how high?) in the translational degrees of freedom and then add...
  4. Coulomb

    Bolts, Nails, Material Properties

    Does anyone know which values I can effectively use for the axial and shear stiffness of bolts and nails which I am modeling as link (nonlinear) elements. Also, for contact surfaces what are stiffnesses that I should be using? I am also looking for material properties of medium density fibre...
  5. Coulomb

    FNA nonlinear link elements

    Is anyone familiar with nonlinear modal time history (FNA) cases that continue from other FNA cases. I need to model the gravity across a nonlinear link element in order to determine its response to a nonlinear harmonic force. Please help, Theresa
  6. Coulomb

    Coulomb Friction Problem continued....

    Just to add to my previous question. I don't know how to specify that the post-slip stiffness is zero. I only see options for specifying nonlinear stiffness.
  7. Coulomb

    Friction Pendulum Isolator - Coulomb Friction

    I am trying to determine the sliding distance of a lumped mass (SDOF system) under a periodic load. I am using a one-joint link (friction-pendulum isolator) where I have specified the radius of curvature to be zero. I have specified a stiffness for u1 and u2 (is u2 zero since it is sliding?)...

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