The investigations were carried out on universal machine Instron 6022 in order to analyse phenomenon of creep in root of sugar beet. The experiment was performed in 3 measurement zones of roots of PN Mono 1 variety. The conducted investigations made it possible determining the pattern of deformation of root tissue in test of creep. The соmputer IBM PC/AT and programme Statgraphics of firm STSC were applied to analysis obtained results. On the basis of experiwental pattern of creep curves the theoretical curves were fitted using the least squares lethod. The high correlation coefficients between experimental ant theoretical curves of creep confirm right choice of mathematical model.
Badano przebiegi krzywych relaksacji naprężenia i pełzania tkanki korzenia buraków cukrowych. Użyto trzyparametrowego modelu reologicznego do opisu stanu tkanki w trakcie badań. Obliczono mechaniczne parametry modelu dla różnych stref korzeni.