Research Article
Accurate Element of Compressive Bar considering the Effect of Displacement
Table 2
Buckling load of bar with different number of elements (N).
| | Interpolation shape function element | Analytical trial function |
| | Number of elements | 1 | 2 | 3 | 4 | 5 | 8 | 20 | Single element |
| | Theory value | 9422.3 | — |
| | Buckling load | 14000 | 9664.1 | 9480.2 | 9441.7 | 9430.5 | 9422.4 | 9422.4 | 9422.34 |
| | Relative error (%) | 48.58 | 2.56 | | | | | | |
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