24.3
Design rules for clamp connections: clamping faces parallel
1
Max.allowable working pressure: at top:
2
Max.allowable working pressure: at location:
3
Design temperature:
MATERIALS
HUB
CLAMP
BOLTS
4
Product form:
5
Allowable stress: at design temperature:
6
''
Allowable stress: at room temperature:
7
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24.3
Design rules for clamp connections: clamping faces parallel
(follows from previous page)
CALCULATION
8
Effective bolt cross section area: per bolt:
9
Effective bolt cross section area: per clamp lug:
10
Moment of inertia: of hub shoulder:

OPERATING
11

Hydrostatic end force: total:
12

''
Hydrostatic end force: on bore:
13

''
Hydrostatic end force: annular:
14
''
15
''
16
Required bolt section:
17
Result for: Bolt stress:
18
19

''
20
Design moment on hub:
21
''
Reaction moment: at hub neck:
22
Reaction shear force: at hub neck:
23
Hub stress: longitudinal: calculated:
24
''
Hub stress: longitudinal: allowable:
25

''
Hub stress: hoop: calculated:
26

''
Hub stress: hoop: allowable:
27
''
Hub stress: axial shear: calculated:
28
''
29
''
Hub stress: shear: allowable:
30
Result for: Hub stress:
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24.3
Design rules for clamp connections: clamping faces parallel
(follows from previous page)
CALCULATION
31
Partial area: of clamp:
32
''
of clamp:
33
Moment of inertia: of clamp:

OPERATING
34
Clamp stress: longitudinal: calculated:
35
''
Clamp stress: tangential: calculated:
36
''
Hub stress: direct: allowable:
37
''
Shear stress: of clamp lip: calculated:
38
''
Clamp stress: shear: allowable:
39
Result for: Clamp stress:
40
''
Bearing stress: of clamp to hub: calculated:
41
''
Bearing stress: of clamp to hub: allowable:
42
Result for: Bearing stress:
43
Final result:
NOTE: clamp lug stresses: to be checked in a separate calculation
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