Accounting for Tolerances in the Strength Calculations of Structures

Calculations with accounting for variations in the structural parameters in the field of tolerances should consider not only the tolerances for the geometry of parts but also, and to an even greater extent, the tolerances for the properties of materials and the program of loading. It has been exemplified that frequently applied approaches, for instance presetting the minimum properties of material in the field of tolerances for the overall structure, can be erroneous. Rarely specified tolerances for the program of loading have also been considered; it has been demonstrated that the respective variations can influence the qualitative behavioral features of structures and change the assurance factors significantly.