Category Archives: UDFs

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 , , , , , , , , , , , , , | Leave a comment

Plane Strain FEA – Non linear staged analysis

Continuing the recent series of posts featuring Fortran based FEA routines, the spreadsheet from the previous post has been revised: The spreadsheet allows for a staged analysis, with additional elements placed in layers for any number of construction stages. Temporary loads … Continue reading

Posted in Beam Bending, Concrete, Excel, Finite Element Analysis, Fortran, Geotechnical Engineering, Link to dll, Link to Python, Newton, NumPy and SciPy, UDFs, VBA | Tagged , , , , , , , , , , , | 1 Comment

PlateStress Update

The functions from the PlateStress spreadsheet (details here) will be incorporated in the FEA spreadsheets currently being presented. In the process of using these functions I made a couple of improvements: The required sequence of the Gauss Points numbers was clarified: … Continue reading

Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Newton, Strand7, UDFs, VBA | Tagged , , , , , , | 1 Comment

Automating Goal Seek with RC Design Functions

As promised in the previous post, I will now look in more detail at the process for automating the Excel Goal Seek function with the RC Design Functions spreadsheet, to calculate reinforcement area or section depth for a range of bending … Continue reading

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , | 3 Comments

RC Design Functions update

Following a comment here I have updated my RC Design Functions spreadsheet, which is available for free download (including full open-source code) from: RC Design Functions7.zip The main new features in the latest version are: The existing optional “depth” argument has … Continue reading

Posted in Arrays, Beam Bending, Concrete, Excel, Frame Analysis, Newton, UDFs, VBA | Tagged , , , , , , | 1 Comment

What-when-how …

… is a web site offering free tutorials on a wide range of subjects, including finite element analysis and VBA. The basics of finite element analysis are covered by links from: Computational Modelling (Finite Element Method) with more advanced material covered … Continue reading

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xlwSciPy 1.7

Following recent posts on xlwings 0.7.1, dictionaries, and optional arguments and xlwings – dataframes and statistics, I have added the associated functions and examples to the xlwSciPy spreadsheet, and also updated it to xlwings 0.71. The new spreadsheet can be … Continue reading

Posted in Excel, Link to Python, Maths, Newton, NumPy and SciPy, Python Pandas, UDFs, VBA | Tagged , , , , , , , , | 3 Comments