МЕТОДИКА ОЦІНКИ ДОВГОВІЧНОСТІ ДЕРЕВИННОВОЛОКНИСТИХ ПЛИТ СЕРЕДНЬОЇ ЩІЛЬНОСТІ (ПЛИТ MDF) ЗА ДОПОМОГОЮ МАТЕМАТИЧНОЇ МОДЕЛІ
Abstract
RELIABILITY ASSESSMENT METHOD MEDIUM DENSITY FIBERBOARD (BOARDS MDF) USING MATHEMATICAL MODELS
L. Bojko, O. Ancyferova
Abstract. Medium density fibreboard widely used in construction (manufacture of laminate flooring and wall panels, ceiling beams and a variety of others.) and furniture production (manufacturing facades and structural elements of the body). To conduct the study used a stand on the basis of the testing machine P-5. The results of an experimental study of the durability of medium density fibreboard (MDF board), on the basis of which it was a mathematical (regression) model to predict the durability of MDF boards. The results MDF durability resource forecast plates on the regression model were compared with the results of calculations by kinetic theory of strength, and it was concluded that the thermally activated and regression model adequately describes the durability of the material, but the fundamental difference between the kinetic model of regression that it combines the impact on the durability of not only the external factors, namely, load and temperature, but also thermally activated parameters that characterize the inner energy potential. Therefore, thermally activated, and the model allows more informative to study the behavior of materials under load, depending on their energy properties.
Keywords: MDF boards, durability life, a mathematical model, the theory of thermally activated safety.
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