Analysis and improvement of the methodology of estimation of strength of threaded joints of shoe upper parts UDC 685.34.017 https://doi.org/10.24412/2079-7958-2025-1-64-76… https://vestnik.vstu.by/eng/issues/vestnik-51/technology-materials-and-products-textile-industry-and-consumer-goods-industry/analysis-and-improvement-methodology-estimation/