Table 1 Moments of inertia of circumferential reinforcement structures with different thicknesses and Π1.

From: Structural characteristics of corrugated sandwich rectangular pressure vessels

No

B (mm)

H (mm)

t (mm)

Iz sq (105 mm4)

Π1

1

58

58

4

4.22

0.70

2

58

58

6

5.70

0.95

3

58

58

7

6.31

1.05

4

58

58

8

6.84

1.14

5

58

58

9

7.30

1.21

6

58

58

10

7.69

1.28

7

58

58

12

8.32

1.38