Page 434 - Biaxial Multiaxial Fatigue and Fracture

418 AUBIN I? QUAEGEBEUR AND S. DEGALLALX

Table 9. Material parameters of model TANA.

E G V CIlYl Y' C2h2 YZ CP..
190GPa 65GPa 0.3 390h4Pa 180MPa 1900 21209MF'a 0.786 12.79 0.728
bi Q1 b2 cc ry ap bp CP aN bN CN
3.2 -84.5 MPa 3.2 1 80 0 0 1 62000 40 5000

@)

7
-800

(MPa) &T (MPa)
-1 1
800 800

-800 (0
420 f 0 Experiment
440
eq
400

300 1
320
0 100 200 300 400 0 100 200 300 400 500
Number of cycles Number of cycles

Fig. 15. Comparison between experiments and simulation for model TANA. (a) Stabilized
stress response for a circle path (Ea = 0.5); (b) stabilized stress response for a square path (E~ =
0.5); (c) stabilized stress response for a hourglass path (sa= 0.5%); (d) stabilized stress response
for a clover path (€a=0.5%); (e) cyclic hardeninglsoftening curve for a circle path = 0.5%);
(0 cyclic hardeninglsofiening curve for a torsion path following a circle path (&= 0.5 %).