Testing (RCC-M)
Level 1 pipeworks calculations - thermal and fatigue gradients

Fatigue tests on mock-ups representative of the equipment can be used to justify the installation, or part of it, if the primary and primary plus secondary stress equations are verified.

The number of cycles and the loading amplitude to be applied during the tests must be increased respectively by the coefficients K _TN and K _TS , determined themselves from the coefficients K _s and K _n and the principle set out in figure 37 ....