1.E+01
1.E+02
1.E+03
1.E+04
1.E+05
0
2
4
6
8
1 0
1 2
number of elements (in log scale)
seed size
(a)
0
1
2
3
4
5
6
7
8
9
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
True Stress (MPa)
True Strain
seed size=10
seed size=5
seed size=2.5
seed size=1.25
seed size=0.625
seed size=3
(b)
0.030
0.035
0.040
0.045
0.050
0.055
0.060
0.065
0.070
0
2
4
6
8
1 0
1 2
Strain Rate (s -1
)
seed size
νp1
νp2
d
(c)
Fig. 7.13 Mesh sensitivity of ABAQUS model in terms of (b) true stress-strain curves and (c)
strain rates (a) for different mesh densities
7.7 Numerical Implementation of Dual-Mechanism Viscoplastic Model
387