GROUPS

Linear function

Exponential function

(Group I)

: 18

: 11

c.v. (%)

−136.3

80.9

-

c.v. (%)

137.1

−85.6

-

S_Y

3.31

4.65

-

S_Y

30.69

0.11

-

Mean (Pa)

−0.24 × 10⁹

5.74 × 10⁹

Mean (Pa)

22.4 × 10⁹

−0.13 × 10⁹

-

Parabolic function

Exponential function

(Group II)

: 15

: 16

c.v. (%)

−187.39

−751.4

70.1

c.v. (%)

137.1

363.03

-

S_Y

4.41

13.21

4.35

S_Y

1.64

0.0014

-

Mean (Pa)

−2.35 × 10⁴

1.76 × 10⁶

6.2 × 10⁸

Mean (Pa)

1.19 × 10⁹

0.000394

Parabolic function

Exponential function

(Group III)

: 8

: 8

c.v. (%)

−145.46

681.87

82.07

c.v. (%)

64.97

795.17

-

S_Y

5.51

18.08

5.64

S_Y

6.58

0.00139

-

Mean (Pa)

−3.78 × 10⁴

2.65 × 10⁶

6.88 × 10⁸

Mean (Pa)

10.1 × 10⁴

0.000175

-

Parabolic function

Exponential function

(Group IV)

: 7

: 7

c.v. (%)

−285.64

654.06

43.66

c.v. (%)

166.33

249.36

-

S_Y

2.06

4.81

2.37

S_Y

22.87

0.00152

-

Mean (Pa)

0.72 × 10⁴

0.74 × 10⁶

5.43 × 10⁸

Mean (Pa)

13.75 × 10⁴

0.000613

-

Parabolic function

Exponential function

(Group V)

: 8

: 7

c.v. (%)

−1005

−279.21

157.2

c.v. (%)

49.89

36.31

-

S_Y

5.03

10.19

22.48

S_Y

1.07

0.0027

-

Mean (Pa)

−0.5 × 10⁴

−3.65 × 10⁶

14.3 × 10⁸

Mean (Pa)

0.21 × 10⁹

0.0075

-