2D FEA (1.5)
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Description
2D finite element analysis (stiffness method) with more than 51 degrees of freedom.
How to use this spreadsheet:
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Input total number of nodes for the structure in cell E3 on the "FEA.Input" tab.
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Define the xy coordinates for each node. Columns F & G on the "FEA.Input" tab.
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Identify the "free" and "fixed" degress of freedom for each node. Columns H, I, & J on the "FEA.Input" tab.
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Input the material properties for each member. Columns T, U, V, & W on the "FEA.Input" tab.
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Input node/joint loads into columns AJ, AK, & AL on the "FEA.Input" tab.
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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
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Input option for an intermediate point load columns AS, AT, & AU on the "FEA.Input" tab. sign convention is same as in step 5
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run analysis by pressing the "FEA" control button on the "FEA.Input" tab.
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see results and deflection plot on the "Results" tab
Note:
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
(5/6)
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