Category Archives: Strand7

Dancing Pendulums Revisited

Posted on April 12, 2020 by

I have previously posted on Dynamically Defined Dancing Pendulums, using the Strand7 FEA program to generate the motion of a series of pendulums of varying length.  I have now updated that video using the latest Beta version of the program (Rel … Continue reading →

Posted in Animation, Finite Element Analysis, Frame Analysis, Newton, Strand7 | Tagged , , , , , | Leave a comment

64 bit Excel and the Strand7 API

Posted on August 13, 2019 by

Back in May 2017 I posted a sample spreadsheet using the Strand7 API to allow Excel to read and write Strand7 node data and results.  A comment noted at the time that the spreadsheet was not working with 64 bit … Continue reading →

Posted in Excel, Finite Element Analysis, Frame Analysis, Link to dll, Newton, Strand7 | Tagged , | Leave a comment

Section Properties with MeshPY, including torsion and warping

Posted on December 9, 2017 by

I recently discovered robbie van leeuwen’s structural engineering blog, which has an open-source set of Python routines for calculation of section properties, including torsion and warping constants.  The program uses the MeshPY Library for generating the finite element meshes required … Continue reading →

Posted in Beam Bending, Concrete, Excel, Finite Element Analysis, Frame Analysis, Link to Python, Maths, Newton, Numerical integration, NumPy and SciPy, Strand7, UDFs, VBA, xlwings | Tagged , , , , , , , , | 7 Comments

3DFrame update

Posted on May 31, 2017 by

The update to the Glob_to_loc3 and Loc_to_glob3 functions (and associated functions) has now been transferred to the 3DFrame spreadsheet, which will now give correct results when beams are defined in the global negative Z direction.  The revised spreadsheet (including full … Continue reading →

Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Newton, Strand7, VBA | Tagged , , , , , | 14 Comments

3D Frame analyses with spring releases – 2

Posted on January 4, 2017 by

The latest version of the 3DFrame spreadsheet (previously presented here) includes provision for spring end releases, allowing for either rotational or translational springs in any direction.  These springs are now incorporated in the model by adjustment of the beam properties, … Continue reading →

Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Newton, Strand7, UDFs, VBA | Tagged , , , , , | Leave a comment