MODELING OF MECHANICAL PROPERTIES OF THE REINFORCED POLYMERIC MATERIALS OF PACKING USING

• Main Authors: Антон Янович Карвацький, Ігор Олегович Мікульонок, Сергій Олександрович Борщик, Вероніка Олексіївна Караулова
• Format: Article
• Language: English
• Published: Igor Sikorsky Kyiv Polytechnic Institute 2018-05-01
• Series: Вісник Національного технічного університету України «Київський політехнічний інститут імені Ігоря Сікорського»: Серія «Хімічна інженерія, екологія та ресурсозбереження»
• Subjects: наповнений полімерний матеріал; волокна природного походження; упаковка; механічні властивості; моделювання
• Online Access: http://chemengine.kpi.ua/article/view/143371
• ISSN: 2617-9741; 2664-1763

Use of the polymers reinforced by natural vegetable fibers can become one of possible ways of broad and purposeful use of polymers in the packing industry. These fibers are characterized by the low cost and density, sufficient density, safety for environment and renewability. At the same time, first of all, such natural fibers as a bamboo, a coco, an abacus, banana, jute, sisal, a palm tree, cotton, flax, hemp are the most widespread in world practice. Uses of a tare and packing from the offered materials are increased by their durability (or reduces material capacity) and provides the accelerated natural decomposition of the used tare and packing. Authors offered approach to mathematical modeling of effective mechanical properties of new composite polymeric materials depending on characteristics of components in them, and also volume contents of the reinforcing fiber of a natural origin in these materials. As a result of researches it is proved applications of model of the orthotropic environment for research of the stressedly-deformed mode (SDM) of samples of the reinforced polymeric materials. The algorithm of determination of effective values of mechanical characteristics of the reinforced polymers with the help the solution of problems of strstressedly-deformed mode is also developed for composites with orthotropic properties. Besides, verification of the SDM numerical model of a sample of composite polymeric material at test according to the ASTM D638 standard according to the numerical experiments received by means of the software of ANSYS Mechanіcal APDL is executed. It is established that distinction between results of calculations does not exceed 3.8 % that is entirely accepted for carrying out engineering calculations. Theoretical researches of dependence of effective values of the main mechanical properties (the module of elasticity, Poisson's coefficient, strength, rigidity and impact strength) perspective composite materials which are subject to destruction under natural conditions, depending on materials of a matrix and fiber, and also its volume fraction in a composite were conducted. And at last, on the basis of a method of final elements the numerical technique and the software in the environment of Mathcad is developed for the solution of problems of the SDM for cases of isotropic and orthotropic environments.