Hybrid Analytical and MLS-Based NMM for the Determination of Generalized Stress Intensity Factors

Table 3

Normalized SIFs comparison for a star-shaped crack.

	*	**	***		*	**	***		*	**	***
0.1	0.7447	0.7408	0.7511	0.758	0.7463	0.7408	0.7690	0.767	−0.0003	0.0000	0.0001	0.000
0.2	0.7629	0.7570	0.7670	0.771	0.7649	0.757	0.7683	0.771	0.0005	0.0004	0.0005	0.000
0.3	0.7913	0.7846	0.7931	0.789	0.7961	0.7884	0.7983	0.798	0.0018	0.0022	0.0021	0.002
0.4	0.8319	0.8255	0.8287	0.821	0.8470	0.8365	0.8466	0.854	0.0074	0.0070	0.0080	0.007
0.5	0.8887	0.8815	0.8864	0.887	0.9229	0.9087	0.9255	0.924	0.0186	0.0168	0.0184	0.016
0.6	0.9712	0.9758	0.9673	0.971	1.0404	1.0182	1.0445	1.040	0.0355	0.0338	0.0364	0.036
0.7	1.1035	1.1142	1.0971	1.107	1.2334	1.1936	1.2367	1.234	0.0600	0.0529	0.0593	0.061
0.8	1.3398	—	1.3423	1.340	1.5631	—	1.5624	1.559	0.0847	—	0.0864	0.082
0.9	1.8801	—	1.9037	1.930	2.1968	—	2.1927	2.166	0.0870	—	0.0868	0.089

“—” means no corresponding solution.
*Cheung et al. (1992) [34]; **Daux et al. (2000) [35]; ***Ma et al. (2009) [7].