Effect of the loading rate on compressive properties of goose eggs.
The resistance of goose (Anser anser f. domestica) eggs to damage was determined by measuring the average rupture force, specific deformation and rupture energy during their compression at different compression speeds (0.0167, 0.167, 0.334, 1.67, 6.68 and 13.36 mm/s). Eggs have been loaded between their poles (along X axis) and in the equator plane (Z axis). The greatest amount of force required to break the eggs was required when eggs were loaded along the X axis and the least compression force was required along the Z axis. This effect of the loading orientation can be described in terms of the eggshell contour curvature. The rate sensitivity of the eggshell rupture force is higher than that observed for the Japanese quail's eggs.
Department of Food Technology, Faculty of Agronomy, Mendel University in Brno, Zemědělská 1, 613 00, Brno, Czech Republic.
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Nedomová
Department of Technology and Automobile Transport (section Physics), Faculty of Agronomy, Mendel University in Brno, Zemědělská 1, 613 00, Brno, Czech Republic. vojtech.kumbar@mendelu.cz.
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V
Kumbár
Institute of Thermomechanics, Czech Academy of Science, Dolejškova 5, 182 00, Prague, Czech Republic.
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Trnka
Department of Technology and Automobile Transport (section Physics), Faculty of Agronomy, Mendel University in Brno, Zemědělská 1, 613 00, Brno, Czech Republic.
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J
Buchar
D000818:Animals; D001696:Biomechanical Phenomena; D019245:Compressive Strength; D004528:Egg Shell; D004531:Eggs; D005777:Geese; D008422:Materials Testing; D013499:Surface Properties
Compression; Deformation; Eggshell curvature; Goose egg; Loading rate; Rupture force