Table 7 Comparison of relative error in energy norm for different interface locations between the different enrichment functions for quadratic 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 | 8.37168E−02 | 2.19329E−14 | 8.37168E−02 |
12.4 | 8.02193E−02 | 2.72702E−14 | 8.02193E−02 |
12.5 | 7.62151E−02 | 3.39596E−12 | 7.62151E−02 |
12.6 | 7.17862E−02 | 1.85735E−14 | 7.17862E−02 |
12.7 | 6.70550E−02 | 1.43340E−14 | 6.70550E−02 |