Section 22.214.171.124.6. Analysis of Intact Structure (Alternate Requirement)
If the depot level inspection is incapable of finding damage
less than a failed load path, then the requirement for intact structure is
given in JSSG-2006 paragraph A3.12.1c.
This states that initial manufacturing damage shall not grow to the size
required to cause load path failure due to the application of PLT in one design
lifetime. The initial damage assumption
for this case is illustrated in Figure 1.3.16.
The schematic of the growth and residual strength guidelines are
illustrated in Figure 1.3.19.
1.3.19. Illustration of
Damage-Growth Limits and Residual Strength; Intact Structure for When Depot
Inspection Cannot Detect Less-Than-Failed Load Path