Study of the effect of the scale factor on the strength properties of man-made leather

The article presents studies of the influence of scale factor on the strength properties of artificial leathers. The method of simulation modeling enables to determine general patterns of influence of linear dimensions of surface - retentive materials on their strength properties. Simulation was performed by the type and parameter of the law of distribution of the breaking load for specimens consisting of one section, the breaking load of which along the length is constant. In order to identify the influence of the geometric dimensions of the sample on the average value of its breaking load, the same experiments were simulated for man - made leather samples with variable length and width. In order to experimentally verify the preliminary conclusions, an experimental evaluation of the breaking load of artificial leather at various geometric dimensions was carried out. The object of the study was double - layered man - made leather, item Hongxin 11022-16. Sample thickness of 0.9 mm, surface density is 435 g/m2. Tests were conducted using TIME WDW - 5 universal testing machine on samples of rectangular shape. As a result of this research, the possibility of practical use of the test simulation method for studying the influence of the scale factor on the strength properties of man - made leather was shown.