Cell-Based Smoothed Finite Element Method-Virtual Crack Closure Technique for a Piezoelectric Material of Crack

Table 2

The energy release rate under different mesh dividing methods.

Element	Material	/(10^−3 N/m)					/(10^−3 N/m)
		CSFEM-VCCT	Error/(%)	FEM-VCCT	Error/(%)	Analytical solu.	CSFEM-VCCT	Error/(%)	FEM-VCCT	Error/(%)	Analytical solu.
I	PZT-4
	P-7
	PZT-5H
II	PZT-4
	P-7
	PZT-5H
III	PZT-4
	P-7
	PZT-5H