Strength of Pressure Equipment Components Taking into Account the Deterioration Concept

Relationships for critical and allowable normal stress and shear stress were proposed, as well as the strength conditions with respect to critical state and with respect to allowable state, respectively, in the case of static loading and cyclic loading, taking into account the concept of deterioration. Values for the deterioration were obtained against experimental data for tubular specimens, with only one load, with two loads acting simultaneously, as well as for samples with rectangular cross-section.