Optimal Modeling of Composite Materials with Specified Properties

Abstract

The areas of application of composite materials are becoming comprehensive: from consumer goods to the space industry. At the same time, the issue of developing methods for designing composite materials for various purposes is still relevant today.The area for improving design, according to the authors, lies in the possibility of wider use of computer programs at the stage of material mathematical modeling, carried out with regard to all its features. This article proposes a variant of process modeling todesign a composite material (CM). The simulation is based on multifactor optimization.The following factors are taken into account: the purpose of the structural element, geometric dimensions, technological and operational requirements, as well as various types of restrictions and effects. Computer implementation is carried out in the MATLAB+Simulink software environment.A brief review of literature is presented with an analysis of the materials used, CM manufacturing technologies, CM components adhesion assessment, formulae for assessing strength, confirmed by experiment, are given; an assessment of the service life is introduced, based on the kinetic theory of strength. The composite modeling was carried out using stratification with the highest stratum on the micro level, and the lowest on the macro level.A formula has been compiled that runs the CM modeling. Based on the modeling block diagram, recommendations are given for working in the MATLAB environment in interactive mode and in the block version of Simulink. The use of computer mathematics systems to describe a model of a composite material will reduce the amount of experimental work both in cost and time.The modeling can fully take into account the specifics of product production and operation made from a composite material.