The calculation results of fatigue site design hull and superstructure in the end of the sliding (expansion) of the compound. The reliability of this site is naturally considered as a factor in the reliability of the hull structure, as the longitudinal walls are a continuation of the add-on-board siding. Durability evaluation unit used to select options with acceptable characteristics of the resource. Some versions of the construction site on the results of calculations by DNV rules and data about the resistance has been regarded as sufficiently reliable. Additional calculations using the deformation method («Strain Life» International Classification), which use resistance characteristics were allowed clarify reliability design options node. Developed for the implementation of the latest technique to bring the stress distribution function to the block diagram, the equivalent distribution for fatigue damage.