STATISTICAL MODELING OF SOME ENVIRONMENTALLY-FRIENDLY COPPER-BASED ALLOYS

Abstract

This paper present the results of defining the mathematical model which describes the dependence of tensile strength from the influential input parameters, aimed at developing non-toxic alloys that could completely respond to the requirements in traffic networks electrification by replacing the currently used Cu-Cd alloy system. The use of Cu-Cd alloys system is always resulting in many environmental problems. Mathematical model is defined using the enter MLRA method, resulted in a linear model whose coefficient of determination was R2=0.826. Validation of the acquired model was performed using the data from the laboratory investigation that are not used when defining the model, rendering the same statistical reliability, with R2=0.815.

U ovom radu su prikazani rezultati definisanja matematičkog modela koji opisuje zavisnost zatezne čvrstoće od uticajnih ulaznih parametara, u cilju razvoja netoksičnih legura koje bi u potpunosti mogle da odgovore zahtevima elektrifikacije saobraćajnih mreža zamenom trenutno korišćene legure Cu-Cd sistema. Upotreba legura sistema Cu-Cd uvek dovodi do mnogih ekoloških problema. Matematički model je definisan primenom enter MLRA metode, što je rezultiralo linearnim modelom čiji je koeficijent determinacije R2=0,826. Validacija dobijenog modela izvršena je korišćenjem podataka iz laboratorijskog ispitivanja koji se ne koriste pri definisanju modela, što daje istu statističku pouzdanost, sa R2=0,815.