<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The study investigates the fatigue strength of a component made of a glass composite material with polyester matrix, manufactured using a contact method (I) and by vacuum bagging (II). Modeling was carried out only for composite material II, due to significant spread of the strength of the composite material manufactured by contact lamination I, which means that such a material does not guarantee repeatability of the test results. Estimation of the composite material fatigue strength and residual strength was performed using a mathematical model based on the Markov chain theory. The model assumed that the material failure occurs at certain critical microvolume of the components operating within the plastic range. Observed relationships between the probability values and the distribution parameters for the static strength of the composite components, as well as the load values allow for deriving a fatigue curve equation. Obtained results are presented in the tables.</p>
</abstract>

The study investigates the fatigue strength of a component made of a glass composite material with polyester matrix, manufactured using a contact method (I) and by vacuum bagging (II). Modeling was carried out only for composite material II, due to significant spread of the strength of the composite material manufactured by contact lamination I, which means that such a material does not guarantee repeatability of the test results. Estimation of the composite material fatigue strength and residual strength was performed using a mathematical model based on the Markov chain theory. The model assumed that the material failure occurs at certain critical microvolume of the components operating within the plastic range. Observed relationships between the probability values and the distribution parameters for the static strength of the composite components, as well as the load values allow for deriving a fatigue curve equation. Obtained results are presented in the tables.

Estimation of Strength Parameters of Aviation Products Made of Polymer Composites Based on Markov Chain Theory

(Faculty of Mechatronics and Mechanical Engineering, Department of Applied Computer Science and Armament Engineering

Transactions on Aerospace Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The study investigates the fatigue strength of a component made of a glass composite material with polyester matrix, manufactured using a contact method (I)...

Estimation of Strength Parameters of Aviation Products Made of Polymer Composites Based on Markov Chain Theory

Published Online: May 31, 2019

Page range: 19 - 30

DOI: https://doi.org/10.2478/tar-2017-0012

Keywords
composite material, composite testing, fatigue strength, residual strength, Markov’s theory

© 2017 Copyright by Lukasiewicz Research Network – Institute of Aviation

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Estimation of Strength Parameters of Aviation Products Made of Polymer Composites Based on Markov Chain Theory

Published Online: May 31, 2019

Page range: 19 - 30

DOI: https://doi.org/10.2478/tar-2017-0012

Keywordscomposite material, composite testing, fatigue strength, residual strength, Markov’s theory

© 2017 Copyright by Lukasiewicz Research Network – Institute of Aviation

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
composite material, composite testing, fatigue strength, residual strength, Markov’s theory