A Cell-Based Smoothed XFEM for Fracture in Piezoelectric Materials

Table 5

Normalized intensity factors under different crack lengths for electromechanical Griffith crack (shear load).

	Normalized intensity factors	PZT-4		P-7
		CS-XFEM	XFEM	CS-XFEM	XFEM
0.5 m	/	0.988	0.979	0.977	0.964
	/	0.994	0.972	0.985	0.971
1.0 m	/	0.968	0.948	0.957	0.937
	/	0.986	0.961	0.975	0.958
1.5 m	/	0.958	0.940	0.948	0.935
	/	0.973	0.955	0.963	0.940
2.0 m	/	0.994	0.987	0.981	0.972
	/	0.998	0.991	0.996	0.989