Abstract. During aircraft operation, the properties of its structural elements degrade, making the prediction of their residual life a critical task. To assess the current serviceability of a structural component, a probabilistic “load-strength” model is analyzed. Based on this model, a methodology is proposed for predicting both the mean residual life and the gamma-percent residual life of a composite strut tube. The practical significance of the developed methodology is demonstrated using the example of predicting the residual life of a carbon-fiber-reinforced polymer strut tube.

Keywords: strut, composite tube, residual life, structural component, prediction, “load-strength” model

For citation: Andryushkin A. Yu., Komarov K. A., Zverev M. A. Predicting the residual life of a composite tube of an aircraft support strut. Aerospace Engineering and Technology. 2025. Vol. 3, no. 3, pp. 488–503. https://doi.org/10.52467/2949-401X-2025-3-3-488-503. EDN VRCFZL (In Russian)