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Category Archives: Newton
Linking Excel to Fortran with ctypes; update
In the previous post arrays were created in Python and passed to a Fortran dll as ctype pointers. The data written to these arrays in the Fortran routines was then converted back to Python arrays with statements such as: nodedisp = npc.as_array(nodedisp). … Continue reading
Linking Excel to Fortran, via xlwings, Python and ctypes
Continuing the recent series on using Fortran code published in Programming the Finite Element Method (5th ed. John Wiley & Sons, I.M. Smith, D.V. Griffiths and L. Margetts (2014)), this post looks at linking Excel to Fortran code compiled as … Continue reading
Compiling Fortran code for Windows
This post is a continuation of a recent series, using Fortran code published in Programming the Finite Element Method (5th ed. John Wiley & Sons, I.M. Smith, D.V. Griffiths and L. Margetts (2014)). The compiled file provided in the download should … Continue reading
Posted in Excel, Finite Element Analysis, Fortran, Newton, VBA
Tagged Excel, FEA, Fortran, Mohr-Coulomb, plane strain, Programming the Finite Element Method, soil-structure interaction, VBA
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Running exe files from Excel
Following on from the previous post (running a compiled Fortran finite element analysis program from Excel), this post looks at the details of calling any command line routine from Excel, through VBA. The important points that need to be addressed are: Writing … Continue reading
Making non-linear FEA with Excel go (much) faster
The spreadsheet presented in the previous post takes about 90 seconds to complete (with the iteration limit set at 500) on my computer, and is much slower on some other systems. The VBA code that does all the hard work is based … Continue reading
Newton Excel Bach, not (just) an Excel Blog 