Page 374 - Biaxial Multiaxial Fatigue and Fracture

358 C. CALI. R. CITARELLA AND M. PERRELLA

Total Number of Cycles vs Crack Size

lll---____._- II_-._ -
+CRACK SIZE A (expenm ) 1
+CRACK SIZE C (experim.)
CRACK SIZE C i
- -CRACKSIZEA
- I
0;o ~~ ~~~
0 500 1000 1500 2000 2500 3000 3500 4000 4500
cycles

Fig. 20: Experimental and numerical crack sizes on the two sides of the plate (A and C are at
the extremity of the crack front).

6.5E+02

6.OE+02
-
5,5E+02
2
E
5 5,OE+02
&
E
Y
{ 4,5E+02
z
4,OE+02

3,5E+02

3,OE+02
0,OO 0,IO 0,20 0,30 0,40 0,50 0,60 0,70 0,80 0,90 1,OO
Local Position on Crack Front

Fig. 21. SIF effective along the crack front for the through crack.