Physical and Mechanical Properties of Walnut

Regarding the high amount of walnut production in Iran, it is needed to develop processing andpackaging systems for this valuable crop to facilitate entering the global markets. In this study,physical and mechanical properties of walnut was determined. The experiments were carried outat compression speeds (0.5, 1.5, and 2.5 mm/s) and compression axes (X, Y). The effect ofinteraction compression speed by compression axes on rupture force and Rupture energy weresignificant (P<0.05). The highest rupture force, rupture energy and rupture power in allcompression speeds were obtained loaded along the length (x-axis). The lower rupture force andrequired energy measured when loading along the width (Y-axis) and in compression speed of1.5mm/s were found 134.66 N and 166.66 mj.

Keywords:

walnut , Mechanical properties , Compression speed and axis