Modelling and Data Analysis
2024. Vol. 14, no. 1, 103–120
doi:10.17759/mda.2024140107
ISSN: 2219-3758 / 2311-9454 (online)
Application of Bio-Inspired Global Optimization Algorithms in the Problem of Selecting Coefficients for a Model of Fatigue Degradation of the Stiffness of a Composite Material
Abstract
The problem of finding the fatigue characteristics of a material based on the test results of a composite material is considered. The initial data are the properties of the material, load parameters and the tabulated dependence of the elastic modulus on the number of tests performed. A differential mathematical model has been formed that describes the change in the elastic modulus with increasing number of loading cycles. Its parameters are found by approximating the rate of change of the elastic modulus using numerical differentiation formulas of various orders and solving the parametric identification problem. The model coefficients are determined by using a method that simulates the behavior of a swarm of moths, related to bio–inspired global optimization algorithms. A solution to the problem for a specific composite material is given.
General Information
Keywords: composite material, stiffness degradation model, bio–inspired algorithm, methods of numerical differentiation and integration
Journal rubric: Optimization Methods
Article type: scientific article
DOI: https://doi.org/10.17759/mda.2024140107
Received: 20.02.2024
Accepted:
For citation: Panteleev A.V., Turbin N.V., Nadorov I.S. Application of Bio-Inspired Global Optimization Algorithms in the Problem of Selecting Coefficients for a Model of Fatigue Degradation of the Stiffness of a Composite Material. Modelirovanie i analiz dannikh = Modelling and Data Analysis, 2024. Vol. 14, no. 1, pp. 103–120. DOI: 10.17759/mda.2024140107. (In Russ., аbstr. in Engl.)
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