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  • Users: ctmfab
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  1. ctmfab

    Handling Large Stiffness Matrix

    Does any know how to handle very large arrays or matrices in VB6.0. I get a memory error when using arrays that are of several thousand terms. (ie 3000x3000). This is for math calculations for stiffness matrix of steel structures. I have seen suggestions to use an array of arrays. In other...
  2. ctmfab

    Large Stiffness Matrix

    Does any know how to handle very large arrays or matrices in VB6.0 (or any programming language). I get a memory error when using arrays that are of several thousand terms. (ie 3000x3000). This is for math calculations for stiffness matrix of steel structures. I have seen suggestions to use...
  3. ctmfab

    FEA Programming

    I am looking for any books with a focus or chapters on FEA programming (or any reference). That is, any with examples or methods shown in theory and code. I am writing a simple program to solve truss models to further my understanding of the methods. Any language is fine, but VB is what I am...
  4. ctmfab

    Skirt Bracing

    Does anyone know of any references for design of skirt bracing to accommodate lifting/shipping loads? Most of the methods I have seen use Roark's equations for stresses in rings. I have seen two methods that seem reasonable. First, the weight is distributed as uniform vertical load around...
  5. ctmfab

    Modeling Slotted Connections

    In structural modeling, what types of end releases are typically used when the bolted connections have slotted holes? The bolts will be loose to allow thermal expansion of the members. “Loose” will be hand-tight, then backed off ½ turn and tack welded (nut to bolt). So far, I have been...
  6. ctmfab

    SEISMIC RESPONSE COEFF. CALC HELP

    For vertical pressure vessel, or "Nonbuilding Structures", IBC 2000 applies the rules of 1617.4 to determine the seismic base shear (for non-rigid structure). I was checking the output of a vessel program and it did not include a calculation for the upper limit for Cs as defined by Eq...
  7. ctmfab

    Anyone have West Point FEA software????

    I have seen the West Point software CME STACKER cited on several different threads, does anyone have this? I checked at the West Point site and can't find any of the software packages other than for bridge design. I am trying to learn more about stiffness matrices and would like to get a copy...

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