Table 1 Compressive modulus (MPa, mean ± SD) at strain rate 3%/min, 30%/min and 300%/min.

0.1

0.20 ± 0.07

0.14 ± 0.08

0.34 ± 0.26

0.12 ± 0.03

0.17 ± 0.13

0.14 ± 0.06

0.10 ± 0.03

0.2

0.71 ± 0.13

0.35 ± 0.01

0.73 ± 0.69

0.43 ± 0.16

0.33 ± 0.26

0.26 ± 0.05

0.40 ± 0.16

0.3

1.40 ± 0.26

0.71 ± 0.14

1.48 ± 0.93

0.93 ± 0.48

0.74 ± 0.32

0.43 ± 0.05

0.81 ± 0.36

0.4

2.57 ± 0.50

1.34 ± 0.34

2.79 ± 1.28

1.95 ± 0.90

1.91 ± 0.88

0.89 ± 0.12

1.48 ± 0.62

0.5*

4.53 ± 0.90

2.35 ± 0.56

4.98 ± 1.90

3.83 ± 1.36

4.43 ± 2.37

1.72 ± 0.38

2.56 ± 0.91

0.6

7.59 ± 1.55

3.84 ± 0.81

8.35 ± 3.13

6.91 ± 1.97

8.90 ± 5.44

3.26 ± 0.91

4.20 ± 1.19

0.1**

0.31 ± 0.07

0.36 ± 0.13

0.32 ± 0.06

0.24 ± 0.03

0.22 ± 0.12

0.10 ± 0.09

0.10 ± 0.02

0.2**

0.94 ± 0.18

1.14 ± 0.40

1.18 ± 0.50

0.62 ± 0.08

1.30 ± 0.48

0.13 ± 0.11

0.24 ± 0.06

0.3***

2.24 ± 0.44

2.60 ± 0.78

2.86 ± 0.86

1.48 ± 0.15

2.44 ± 0.16

0.33 ± 0.25

0.58 ± 0.16

0.4***

5.08 ± 0.62

5.33 ± 1.34

6.65 ± 1.66

3.43 ± 0.45

4.77 ± 0.64

0.87 ± 0.56

1.62 ± 0.45

0.5***

10.31 ± 0.62

9.92 ± 2.25

13.85 ± 4.52

7.04 ± 1.08

9.40 ± 1.61

2.51 ± 1.05

3.86 ± 1.02

0.6**

18.81 ± 1.06

16.97 ± 3.72

25.75 ± 10.21

12.92 ± 2.15

16.72 ± 4.45

5.88 ± 2.13

7.84 ± 2.06

0.1

1.28 ± 0.61

2.11 ± 0.65

2.46 ± 0.68

0.81 ± 0.56

1.24 ± 0.17

0.48 ± 0.14

0.95 ± 0.32

0.2**

4.61 ± 1.79

5.76 ± 1.57

8.23 ± 3.89

1.96 ± 1.18

4.12 ± 1.16

1.04 ± 0.25

3.97 ± 1.97

0.3***

12.79 ± 3.11

12.24 ± 2.59

19.85 ± 8.42

4.62 ± 1.55

10.57 ± 2.26

2.12 ± 0.33

9.79 ± 3.19

0.4***

23.82 ± 4.33

22.89 ± 3.42

37.75 ± 11.85

10.31 ± 2.16

20.95 ± 2.74

3.79 ± 0.86

16.79 ± 4.02

0.5***

35.68 ± 3.51

39.07 ± 4.52

62.35 ± 13.04

20.55 ± 4.50

35.61 ± 3.85

6.16 ± 1.21

23.37 ± 5.15

0.6***

51.47 ± 2.60

62.13 ± 7.85

94.05 ± 17.46

36.87 ± 10.35

54.93 ± 10.05

9.33 ± 1.79

27.90 ± 8.01