User:Not fred999/CBM figure sandbox

Original:

A vestibule is composed of an ACBM ring (1) mounted to a flanged bulkhead (3) and a PCBM ring (2) mounted to a flanged bulkhead or barrel section (4). The rings, both machined from 2219 Aluminum forgings, mate at a “molded seal” (5); each ring is sealed at its inboard end by a pair of concentric o-rings (6). Shown here “mid-span” between the Powered Bolt locations, three internal loads try to pry the joint open: atmospheric pressure (F_a) (15.2 psia), seal compression (F_s) and flange conformance (F_c). This artist's rendering of a generic cross-section also shows (in blue) where air can leak to the vacuum of space.

Overlay Mockup:

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An artist's rendering of a generic cross-section “mid-span” between the Powered Bolt locations. 1 The ACBM ring is machined from 2219 Aluminum forging 2 The PCBM ring is machined from 2219 Aluminum forging 3 The ACBM ring bolts to a bulkhead flange 4 The PCBM ring bolts to a flange on a bulkhead or barrel section 5 The ACBM and PCBM rings meet at a special "molded" seal 6 Two o-rings seal each ring to the mounting flange

Leak Paths to space 7 CBM/CBM Seal (both sides) 8 Under the bolt head 9 Between ring and flange

Three internal loads try to pry the joint open.    Fa: Internal Pressure (15.2 psia)    Fs: Seal Compression    Fc: Flange Conformance