2D FEA (1.5)



2D finite element analysis (stiffness method) with more than 51 degrees of freedom.
How to use this spreadsheet:

1) Input total number of nodes for the structure in cell E3 on the "FEA.Input" tab.
2) Define the xy coordinates for each node. Columns F & G on the "FEA.Input" tab.
3) Identify the "free" and "fixed" degress of freedom for each node. Columns H, I, & J on the "FEA.Input" tab.
4) Input the material properties for each member. Columns T, U, V, & W on the "FEA.Input" tab.
5) Input node/joint loads into columns AJ, AK, & AL on the "FEA.Input" tab.
6) Input member distributed loads in Columns AO & AP on the "FEA.Input" tab. (uniform, trapezoidal or triangular) sign convention is same as in step 5
7) Input option for an intermediate point load columns AS, AT, & AU on the "FEA.Input" tab. sign convention is same as in step 5
8) run analysis by pressing the "FEA" control button on the "FEA.Input" tab.
9) see results and deflection plot on the "Results" tab

The Gauss-Jordan method is used to over come the 51x51 "MINVERSE" limitation of excel .

Calculation Reference
Beam Analysis
Structural Assessment
Finite Element Method

Calculation Preview

01 Oct 2014
Last Modified
02 Oct 2014
File Size:
8,610.37 Kb
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Comments: 1
JohnDoyle[Admin] 9 years ago
I particularly liked seeing the validation of the calculation method. I have awarded a free XLC Pro subscription for a year. Thank you Jason.