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# Category Archives: Link to dll

## February Links

Two new links with valuable free resources: .net and office automation follies : including many advanced VBA resources. Thanks to Alfred Vachris for the link. AET VBE Tools : Tools for the Visual Basic editor from Andrew Engwirda (via Daily Dose of … Continue reading

## Frame analysis with spring releases; 2D

I have updated the Frame4 spreadsheet to allow a rotational spring stiffness to be specified for members with a rotational end release. The new file can be downloaded from: Frame4.zip See Installing C# dll files, reminder for details of installing the … Continue reading

Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Link to dll, Newton, Strand7, VBA
Tagged Excel. VBA, Frame Analysis, moment release, spring hinges, Strand7
1 Comment

## Installing C# dll files, reminder

Installing the Frame4 spreadsheet on a new computer I had some problems registering the dll files required for the compiled solver routines, so here is a reminder of the procedure: Copy the alglibnet2.dll and ALMatrixLib.dll files to the appropriate folder (see … Continue reading

## Non-linear frame analysis; moment curvature and self-weight

The Python/Fortran/Excel frame analysis program (previous version here) now has several new features added to the 2D-solver routines: The beam bending behaviour may now be specified with moment-curvature tables, rather than the linear-plastic behaviour required in the previous version. Beam … Continue reading

Posted in Arch structures, Beam Bending, Concrete, Excel, Finite Element Analysis, Fortran, Frame Analysis, Link to dll, Link to Python, NumPy and SciPy, Strand7, VBA
Tagged Excel, FEA, Fortran, Frame Analysis, link to dll, moment curvature, Non-linear concrete, Non-linear geometry, Programming the Finite Element Method, Python, SciPy, sparse solvers, VBA, xlwings
1 Comment

## Non-linear Frame Analysis – Scipy solvers

The frame analysis spreadsheet presented in the previous post has been updated to use the solvers included in the Scipy package. There is now an option to use either the Cholesky solver, or an iterative sparse solver. The main advantages of … Continue reading

Posted in Arrays, Beam Bending, Excel, Finite Element Analysis, Fortran, Frame Analysis, Link to dll, Link to Python, Newton, NumPy and SciPy, Strand7, UDFs, VBA
Tagged Cholesky factorisation, ctypes, Excel, FEA, Fortran, Frame Analysis, link to dll, Non-linear concrete, Programming the Finite Element Method, Python, SciPy, sparse solvers, VBA, xlwings
1 Comment

## Non-linear Frame Analysis

Another example 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 provides a spreadsheet based frame analysis program including non-linear bending behaviour and … Continue reading

Posted in Beam Bending, Excel, Finite Element Analysis, Fortran, Frame Analysis, Link to dll, Link to Python, Newton, NumPy and SciPy, Strand7, UDFs, VBA
Tagged ctypes, Excel, FEA, Fortran, Frame Analysis, link to dll, Non-linear concrete, Programming the Finite Element Method, Python, VBA, xlwings
3 Comments

## Retaining wall analysis – FEA and hand calculations

I have used the PlateMC spreadsheet described in the previous post to compare the results of a finite element analysis of a retaining wall with a similar analysis using the commercial package Strand7, and a simple hand calculation using Coulomb … Continue reading

Posted in Excel, Finite Element Analysis, Fortran, Frame Analysis, Geotechnical Engineering, Link to dll, Link to Python, Newton, NumPy and SciPy, Strand7, UDFs, VBA
Tagged Coulomb, ctypes, Excel, FEA, Fortran, Ka, link to dll, plane strain, Programming the Finite Element Method, Python, soil-structure interaction, staged analysis, VBA, xlwings
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