Table 6 Comparison of relative error in energy norm for different interface locations between the different enrichment functions for linear elements used in the bi-material bar problem (results obtained with E1 = 2.05 MPa, E2 = 20.5 MPa, L = 25 m and \(\bar{u} =3 \cdot 10^{-6} \)m)
Interface location | Sukumar | Moës | Belytschko |
|---|---|---|---|
12.3 | 2.38688E−01 | 3.26389E−15 | 2.38688E−01 |
12.4 | 2.42403E−01 | 4.30236E−15 | 2.42403E−01 |
12.5 | 2.45626E−01 | 2.82096E−15 | 2.45626E−01 |
12.6 | 2.48370E−01 | 5.19794E−15 | 2.48370E−01 |
12.7 | 2.50650E−01 | 6.25056E−15 | 2.50650E−01 |