Page 294 - Biaxial Multiaxial Fatigue and Fracture

278 A. BUCZYNSKI AND G. GLINKA

and
2
and the FEM determined axial and shear strain components, ~ 2 and ~SZ~~, the axial and shear
stress components, 02za and 023', respectively are shown in Figs. lla - 12b. The results
corresponding to the Stress Path #1 (Fig. 9a) are shown in Figs. 1 la and 1 lb. Note, that the
calculated stresses and strains and the finite element data are identical in the elastic range.

Load path #I
150 1

-150'
Axial elastic notch tip stress, MPa

Fig. 9a. Non-proportional lodstress path #1

Load path #2
175

150
P" 125
I
:: 100
.- i 75
+.a
Jz
y 50
0
.e 25
m -
Y
0 0
L
m
2 -25
v)
-50
-75
Axial elastic notch tip stress, MPa
Fig. 9b. Non-proportional load/stress path #2