RESEARCH OF THE IMPACT BEHAVIOR OF A PARTICLE IN INTERACTION WITH THE LINER BY THE FINITE ELEMENT METHOD

Abstract

Purpose of the work: determination of the characteristics of the interaction between the particle and the lining in cold gas-dynamic spraying. Research methods: the finite element method was used in modeling the process. Results: In this work, the impact behavior of a particle upon interaction with a lining during cold gas-dynamic spraying is investigated. In the process of performing the work, the FEM ABAQUS / Explicit program was used. The study consists of the following stages: simulation of a particle and a substrate using various parameters of the Johnson-Cook steel material, particle sizes and other parameters; analysis of the effect of different particle impact velocities for different Johnson - Cook parameters (the same for a particle and a substrate), an analysis of previous results at different temperatures (for particles) is ISSN 2308-5312 Наукові праці ДонНТУ. Серія: «Машинобудування і машинознавство». No1(14)’2020 36 carried out. The article presents the results of studies carried out in the laboratories of the Technical University of Kaiserslautern (Germany) under the DAAD international scientific cooperation program. Scientific novelty: a methodology has been developed for modeling the process of interaction between the particle and the lining. Practical value: the methods of modeling and experimental study of the impact behavior of a particle when interacting with a lining presented in the article can be used in the design and modernization of technological equipment