The impact of variety and loading speed and direction on failure energy and toughness of sunflower seeds

Shojaei, Rahim and Rasekh, Mansour and Afkari-Sayyah, Amir Hossein and Askari Asli-Ardeh, Ezzatollah (2017) The impact of variety and loading speed and direction on failure energy and toughness of sunflower seeds. In: 1st International and 5th National Conference on Organic vs. Conventional Agriculture, 16-17 August 2017, Ardabil, Iran.

Text C-00070-AB.pdf Download (460kB)

Abstract

In this study, failure energy and toughness in rupture point of three varieties of sunflower seeds (almond, round, white, thin) in loading speeds of 10, 25, 40 and 55 mm per minute and in two longitudinal and lateral direction in 10 replications in a factorial experiment in completely randomized design were investigated. Results showed that main effect of loading speed and direction and binary interaction loading speed× variety and binary interaction loading speed × loading direction for failure energy of sunflower seeds was significant at level of 1%. And the main effect of loading speed and direction and binary interaction loading speed× variety and binary interaction loading speed × loading direction for toughness of sunflower seeds was significant at level of 1%.And also the main effect of variety and binary interaction loading direction × variety and triple interaction loading speed × loading direction × variety for failure energy and toughness was not significant. Also the results showed that the highest failure energy for the variety of almond at the speed of 10 mm per minute was obtained to the amount of 1.648 mJ and the lowest failure energy for the variety of almond at the speed of 40 mm per minute has been determined to the amount of 0.104 mJ.And the highest toughness for the variety of almond at the speed of 10 mm per minute was obtained to the amount of 2.327 mJ and the lowest toughness for the variety of almond at the speed of 40 mm per minute was obtained to the amount of 0.1640 mJ. The results also showed that in all loading speeds, failure energy and toughness of sunflower seeds in the lateral direction is greater than in the longitudinal direction. Amount failure energy and toughness of sunflower seeds in both longitudinal and lateral loading is reduced with increasing speed.

Actions (login required)

View Item