Influence of the Fiber Bedding Direction on the Fiber Composite Wear

IF 0.5 4区工程技术 Q4 ENGINEERING, MECHANICAL Journal of Friction and Wear Pub Date : 2023-06-22 DOI:10.3103/S1068366623010129

A. G. Shpenev, P. O. Bukovskiy

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Abstract—

The fibrous composite wear rate dependence on the angle between the sliding direction and the direction of the fibers on the friction surface, when fibers in the material are parallel to the friction surface was studied. For this purpose, an experiment was carried out on the wear of a composite material sample based on carbon fiber and a carbon matrix in the form of a disc with a ring-shaped counterbody made of silicon carbide ceramics. The structure of the composite made of carbon twill weave forms on the friction surface areas with fibers oriented parallel to each other and the surface of the material. Setting up the experiment according to the “ring–disk” scheme allows one to obtain a different angle between the direction of the fibers and the direction of sliding in one test. Based on the results of the friction surface relief study after the tests, the relative wear rate of the surface areas, which are characterized by different directions of the fibers, is determined. It was found that areas with fibers directed at an acute angle to the friction direction have greater wear resistance, and fibers located at a right angle to the direction of sliding are more susceptible to destruction during wear. A wear process model of an individual fiber up to its complete destruction is constructed. A phenomenological criterion for the destruction of an individual fiber is proposed, which makes it possible to estimate the effect of the angle between the direction of the fiber and the direction of sliding on the destruction of the fiber. An algorithm for determining the coefficients included in the proposed wear model, based on a limited number of tribological tests, is proposed.

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纤维层理方向对纤维复合材料磨损的影响

摘要:研究了当纤维与摩擦面平行时，纤维复合材料的磨损率与纤维在摩擦面上的滑动方向与纤维方向夹角的关系。为此，以碳化硅陶瓷为材料，对碳纤维与碳基体的圆盘状复合材料样品进行了磨损试验。碳斜纹织物复合材料的结构形成于摩擦表面，纤维取向与材料表面平行。根据“环盘”方案进行实验，可以在一次测试中获得纤维方向与滑动方向之间的不同角度。根据试验后的摩擦面起伏研究结果，确定了不同纤维方向的摩擦面相对磨损率。研究发现，纤维与摩擦方向成锐角的区域耐磨性更强，与滑动方向成直角的纤维在磨损过程中更容易被破坏。建立了单个纤维直至其完全破坏的磨损过程模型。提出了一种单纤维破坏的现象学判据，可以估计纤维方向与滑动方向之间的夹角对纤维破坏的影响。提出了一种基于有限数量的摩擦学试验来确定所提出的磨损模型中包含的系数的算法。

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来源期刊

Journal of Friction and Wear ENGINEERING, MECHANICAL-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

1.50

自引率

28.60%

发文量

审稿时长

6-12 weeks

期刊介绍： Journal of Friction and Wear is intended to bring together researchers and practitioners working in tribology. It provides novel information on science, practice, and technology of lubrication, wear prevention, and friction control. Papers cover tribological problems of physics, chemistry, materials science, and mechanical engineering, discussing issues from a fundamental or technological point of view.