Table 1 The difference between internal forces generated by two RK shape functions with different support sizes in a one-dimensional stressed rod, where \(a\) denotes the RK normalized support size
Stress | Internal forces | Difference (%) | |
|---|---|---|---|
\(a=3.0\) | \(a=1.5\) | ||
\(x\) | − 0.16039 | − 0.16252 | 1 |
\({x}^{2}\) | − 0.00452 | 0.00599 | 176 |
\({x}^{3}\) | − 0.01140 | − 0.00442 | 158 |
\({x}^{4}\) | − 0.00111 | 0.00031 | 453 |