A Non-Convex Partition of Unity and Stress Analysis of a Cracked Elastic Medium

Table 3

Relative error comparison in the energy norm (%).

	-FEM with Mesh I	-FEM with Mesh II	-FEM with MAM	Meshfree enrichment
2	49.04	21.21	15.81	21.3
4	37.59	12.12	4.22	2.25
6	31.87	9.82	1.10	0.20
8	28.23	8.60	0.38	—