Model of Residual Life of a Plate with a Crack System under Corrosive Environment and Maneuver Loading Mode

Keywords

computational model, system of cracks, residual life, energy approach, corrosive environment

Abstract

A computational model is developed to study the kinetics and determine the period of subcritical growth of a system of cracks in a plate under the influence of a corrosive environment and a maneuver loading mode. The computational model is a differential equations with initial and boundary conditions, which describe the rate and direction of crack propagation. Based on the model, the residual life of a plate made of steel St3 with a two-periodic system of cracks was estimated.

References

1. Andreikiv O.Ye., Pustovyi V.M., Rudavskyi D.V., Dolinska I.Ya., Semenov P.O. Methods for assessing residual strength and durability of structural elements based on nondestructive testing data. – Lviv: Publishing House “Prostir-M”, 2017. – 460 p. (in Ukrainian)
2. Andreikiv O.Ye., Dolinska I.Ya., Skalskyi T.V. Assessment of the residual life of a plate with a system of cracks under maneuver loading and exposure to a corrosive environment // Physicochemical Mechanics of Materials. – 2025. – 61(2). – P. 075–081. https://doi.org/10.15407/pcmm2025.02.075