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Table 4 Optimised parameter values for the viscoplastic constitutive model

From: Testing, characterization and modelling of mechanical behaviour of poly (lactic-acid) and poly (butylene succinate) blends

Parameters

70/30

50/50

30/70

E (MPa)

2296.78

1395.73

870.15

Z

33.19

31.49

17.66

N

8.06

6.92

65.59

C1

413.82

610.23

590.21

a1 (MPa)

9.59

5.16

4.87

C2

51.73

104.67

85.34

a2 (MPa)

5.67

4.27

5.22

b

36.08

147.51

3.45

Q (MPa)

−11.48

−5.23

8.35

k (MPa)

40.12

35.16

29.77

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