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Updates to SLFFEA

Updated 11/14/06



Here is a summary of the updates as of 11/13/06:

Version 1.3 is finally here.

You can get it at the download page. I will simply summarize the changes made since 1.2. In the process of working on 1.3, I added so much that I am simultaneously releasing 1.3 and 1.4 with the latter holding all of the new elements. For 1.3, the most significant changes are:

Science Code Changes
    1. Added 2 new beam element types.
      1. Added Reisner-Midlin (shear deformable) Beam
      2. Added hinge element
      All of these elements include modal analysis.
    2. I've modified the shell code so that it can handle shells defined by 4 nodes in addition to 8 nodes. The thicknesses of 4 node shells will be averaged over the shared nodes of adjacent elements to generate a set of corresponding top nodes.

Graphics Code Changes

All the graphics codes have been modified to handle the new data fomats. In addition:
  1. I rescale the entire mesh coordinates and displacements based on the absolute largest coordinate dimension. This was necessary because the graphical display had a problem when dimensions were larger than 1000 or smaller than .1.
  2. I added a transparency feature where you can see through the mesh.(Press the hotkey "t").
  3. I added toggling on and off of the wire frame. (Press the hotkey "j").
  4. The numbering of hash marks on the axes is also improved. Now the numbers maintain their orientation with the viewer.
Go here to see the previous update page listing the modifications leading to Version 1.3. .
Go here to see the previous update page listing the modifications leading to Version 1.2. .
Go here to see the previous update page listing the modifications leading to Version 1.1. .

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