FRAME3DD 20140514

Software for static and dynamic structural analysis of 2D and 3D frames
FRAME3DD - This is how you can run the software in a terminal window.
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Frame3DD is a free and open-source software for static and dynamic structural analysis of 2D and 3D frames and trusses with elastic and geometric stiffness.

Frame3DD computes the static deflections, reactions, internal element forces, natural frequencies, mode shapes and modal participation factors of two- and three- dimensional elastic structures using direct stiffness and mass assembly.

Frame3DD has its own text-file input format (.3dd), but additionally supports matlab (.m) and spreadsheet (.csv) file formats, and offers graphical output including mode shape animation via Gnuplot version 4.2.

last updated on:
May 15th, 2014, 17:19 GMT
file size:
2.1 MB
license type:
developed by:
Henri P Gavin
operating system(s):
Mac OS X
binary format:
Universal Binary
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What's New in This Release:
  • include the effect of applied point loads at reaction coordinates on the computed reaction forces
  • This change has simplified the calculations by eliminating the need for
  • the entire function: compute_reaction_forces() and
  • the reaction-related calcluations in the function: add_feF().
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