Читать книгу The Rheology Handbook - Thomas Mezger - Страница 134

These model functions are purely mathematical descriptions of flow curve functions (e. g. according to Williamson , Rabinowitsch, Weissenberg). Polynomial models represent the most general approach to curve analysis and can be fitted to each type of curves. However, when using this method, a relatively large number of coefficients have to be determined, although this is no longer a problem with current software analysis programs.