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# Category Archives: Finite Element Analysis

## Dancing Pendulums Revisited

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 avi, dynamic analysis, mp4, Pendulum animation, Snagit, Strand7
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## Column buckling under multiple loads

Following another buckling discussion at Eng-tips I have modified my Frame4-buckle spreadsheet to allow input of multiple axial loads at any point along the column, along with any number of sections with different section properties. Background on the method used … Continue reading

Posted in AlgLib, Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Newton, UDFs, VBA
Tagged AlgLib, column buckling, Euler buckling, Excel, Frame Analysis, multiple load buckling, stepped column, tapered column, VBA, Vianello
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## 64 bit Excel and the Strand7 API

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 64 bit Excel, Strand7 API
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## 3D Frame with zero stiffness hinges

The previous version of 3DFrame allowed for spring releases at beam ends, but if the release stiffness was entered as zero it was treated as a rigid connection for that freedom. Effectively zero stiffness releases could be modelled by entering … Continue reading

## Beam geometric non-linear effects

A quick and convenient way to allow for the effect of deformations on the behaviour of beams and columns under axial load is to adjust the beam stiffness matrix, so that the calculated deflections are in equilibrium with the applied … Continue reading

Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Newton, UDFs, VBA
Tagged Euler buckling, Excel, Frame Analysis, Non-linear geometry, Second order effects, UDF, VBA
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