Study on the Fracture Process Zone near the Mode I Dynamic Crack Tip

Table 2

Areas of the FPZ for different terms in the expansion of the stress function.

Stress function	Area of the fracture process zone (cm^2)	Change rate (%)
First term	4.23987	—
First two terms	7.81604	84.35
First three terms	7.31473	6.41
First four terms	7.32698	0.167
First five terms	7.32314	0.052