The dependence of thermal processes in non-metallic heterogeneous materials on mechanical vibration loads
Date
2023-02-28
Journal Title
Journal ISSN
Volume Title
Publisher
Видавництво Львівської політехніки
Lviv Politechnic Publishing House
Lviv Politechnic Publishing House
Abstract
One of the promising directions in the development of mechanical engineering is
using of new non-metallic heterogeneous materials with high physical and mechanical properties.
Such materials consist of two or more components (reinforcing filler and polymer matrix) and have
specific physical and mechanical properties that are different from the properties of the constituent
components. This is achieved by forming a complex developed structure. Reliable control methods
play an important role in ensuring the quality of such structures. The paper considers an acoustic
infrared thermometric method of control, which is based on the interaction of structural defects with
acoustic waves. At the same time, thermal energy is generated at their boundaries, which is an
indicator not only of the presence of cracks but also of their direction and development. a
mathematical model has been developed that describes the transformation of the energy of
mechanical vibrations into thermal energy, which occurs in non-metallic heterogeneous materials.
Description
Keywords
non-metallic heterogeneous materials, acoustic infrared method of control, flaw detection, thermal energy, the energy of mechanical vibrations
Citation
The dependence of thermal processes in non-metallic heterogeneous materials on mechanical vibration loads / Volodymyr Tonkonogyi, Maryna Holofieieva, Oleksandr Levynskyi, Sergii Klimov, Predrag Dasic // Ukrainian Journal of Mechanical Engineering and Materials Science. — Lviv : Lviv Politechnic Publishing House, 2023. — Vol 9. — No 2. — P. 83–90.