Development of the method for calculating the deformation curves of fiber composite materials with a metal matrix
DOI:
https://doi.org/10.37142/2076-2151/2022-1(51)55Keywords:
deformation curves, fibrous composite materials, metal matrix, fiber, deformations.Abstract
Titov V., Nazaruk T. Development of the method for calculating the deformation curves of fiber composite materials with a metal matrix.
A method of constructing deformation curves of metal composite materials reinforced with continuous round fibers has been developed. The method takes into account the mechanical properties of structural components (fibers and matrices), their sizes and relative position in composite materials (CM). Taking into account the orthotropy of the properties, the method is extended to the deformation of fibrous CM under conditions of linear loading (tension or compression) in planes perpendicular to the direction of the fibers.
The analysis of the process of deformation of fibrous CM shows that during deformation there is a significant non-uniformity of deformations of the plastic matrix. Thus, the evaluation of the deformation of the CM of the Al-B system shows that with a change in the fiber pitch within 0.16-0.24 mm and a fiber diameter of 0.14 mm, the value of the limit of proportionality of the composite is 0.12-0.42 of the limit of proportionality of the matrix.
The obtained dependencies allow calculating the deformation curves of the metal composite in the elastoplastic region based on the properties of the matrix material. Deformation curves obtained for typical Al-B CM systems for deformations up to 0.5–0.6%.
The method can be effective for predicting plastic properties when designing the structure of new CMs.
References
Composite materials. Directory. Ed. D.M. Karpinosa. Kyiv: Naukova dumka. 1985. 592 p. (in Russian).
Composite materials. T. 8. Analysis and design of structures. Ed. L. Brautman and R. Krok. Moscow: Mir. 1978. 508 p. (in Russian).
Kryvov G.A., Titov V.A., Lupkin B.V., et al. Structures from metallic composite materials. Kyiv: Technika. 1992. 224 p. (in Russian).
Kryvov G.A., Titov V.A., Fedorenko Yu.M., et al. Moderation of technological processes of forming parts from flat metal-polymer composites. Mechanics of composite materials. 1995. 3, pp. 417-427. (in Russian).
Titov V.A., Mitrofanova V.V., Shlyannikov V.N. Construction of diagrams of CM deformation on a metal matrix reinforced with continuous fibers. Technology of production of parts from composite materials. Moscow: VYMY. 1991, p. 57. (in Russian).
