Assessment of the residual life of a plate with a system of cracks under maneuver loading and exposure to a corrosive environment

• DOI: 10.15407/pcmm2025.02.075
• Publication Date: 2025-05-02T10:05:12Z
• Authors: O. Ye. Andreikiv; I. Ya. Dolinska; ; Т. V. Skalskyi

Using the energy approach, a mathematical model is developed to study the kinetics and determine the period of subcritical growth of a crack system in a plate under the influence of corrosive environment and a maneuverable loading mode. The mathematical model is a differential equation with initial and boundary conditions which describe the rate and direction of crack propagation. The model was applied to determine the residual lifetime of a plate made of steel St3 with a two-periodic system of cracks under maneuverable loading and corrosive-active environment.