| تعداد نشریات | 24 |
| تعداد شمارهها | 881 |
| تعداد مقالات | 7,867 |
| تعداد مشاهده مقاله | 14,699,817 |
| تعداد دریافت فایل اصل مقاله | 12,550,024 |
Effect of applied force direction on bending behavior of boxwood stalk | ||
| Iran Agricultural Research | ||
| مقاله 4، دوره 41، شماره 1، 2022، صفحه 29-38 اصل مقاله (1.19 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22099/iar.2022.40651.1442 | ||
| نویسندگان | ||
| M.R Kamandar* ؛ F Khoshnam؛ H Ghasemkhani | ||
| Department of Mechanical Engineering of Biosystems, Faculty of Agriculture, University of Jiroft, Jiroft, I. R. Iran | ||
| چکیده | ||
| The bending behavior analysis of boxwood stalk, including bending force, bending strength, and Young’s modulus, were carried out at different loading rates and internode positions as a function of applied force direction to design a new hedge trimmer machine. Given that the cross-section of the stalk is oval, the stalk specimens were examined in a quasi-static process at four loading rates of 5, 10, 15, and 20 mm min-1, three internode positions of fifth, tenth, and fifteenth, and two directions of the applied force of the oval major (x-direction) and minor (y-direction) diameters. The results showed that the loading rate of 20 mm min-1 had 20–30% and 15–20% lower values for the bending force and bending strength than the loading rate of 5 mm min-1 for all stalk regions and both directions of applied force. Also, the loading rate of 20 mm min-1 had 50–70% and 35–40% lower values for Young’s modulus than the loading rate of 5 mm min-1 in the x and y directions of applied force, respectively, for all stalk regions. The fifth internode had 40–48% and 35–37% lower values for bending force and bending strength than that of the fifteenth internode position for all loading rates and both applying force directions. Also, the fifteenth internode position had 50–80% and 40–60% lower values for Young’s modulus than the fifth internode position in the x and y directions of applied force, respectively, for all stalk regions. | ||
| کلیدواژهها | ||
| Bending stress؛ Major and minor diameter؛ Young’s modulus | ||
| مراجع | ||
|
Amer Eissa, A. H., Gomaa, A. H., Baiomy, M. H., & Ibrahim, A. A. (2008). Physical and mechanical characteristics for some agricultural residues. Journal of Agricultural Engineering., 25, 121-146. ASAE. (2005). Moisture relationships of plant-based agricultural products. St. Joseph, Mich: ASAE. Boydas, M. G., Comakli, M., Sayinci, B., & Kara, M. (2019). Effects of moisture content, internode region, and oblique angle on the mechanical properties of sainfoin stem. Turkish Journal of Agriculture and Forestry, 43, 254-263. Bright, R. W., & Kleis, R. W. (1964). Mass shear strength of haylage. Transaction of the ASAE, 7, 100-101. Chancellor, W. J. (1958). Energy requirement for cutting forage. Journal of Agricultural Engineering Research, 39, 633-639. Chandio, F. A., Yi, C., Tagar, A. A., Mari, I. A., Arslan, C., Cuong, D. M., & Fang, H. (2013). Effect of loading rate on mechanical characteristics of wheat and rice straw. Bulgarian Journal of Agricultural Science., 19, 1452-1458. Chattopadhyay, P. S., & Pandey, K. P. (1999). Mechanical properties of sorghum stalk in relation to quasi-static deformation. Journal of Agricultural Engineering Research, 73, 199-206. Crook, M. J., & Ennos, A. R. (1996). Mechanical differences between free-standing and supported wheat plants. Annals of Botany 77, 197-202. Curtis, L. M., & Hendrick, J. G. (1969). A study of bending-strength properties of cotton stalks. Transactions of the ASAE, 12 (6), 39-45. Dongdong, D., & Jun, W. (2016). Research on mechanics properties of crop stalks: A review. International Journal of Agricultural & Biological Engineering, 9, 10-19. Esehaghbeygi, A., Hoseinzadeh, B., Khazae, M., & Masoumi, A. (2009). Bending and shearing properties of wheat of alvand variety. World Applied Sciences Journal, 6, 1028-1032. Gere, J. M., & Timoshenko, S. P. (2004). Mechanics of materials. Belmont CA, USA: Thomson Learning Inc. Hoseinzadeh, B., & Shirneshan, A. (2012). Bending and shearing characteristics of canola stem. American-Eurasian Journal of Agricultural and Environmental Sciences, 12, 275-281. Ince, A., Ugurluay, S., Guzel, E., & Ozcan, M. T. (2005). Bending and shearing characteristics of sunflower stalk residue. Biosystems Engineering, 92, 175-181. Kaack, K., & Schwarz, K. (2001). Morphological and mechanical properties of Miscanthus in relation to harvesting, lodging, and growth conditions. Industrial Crops and Products, 14, 145-154. Kamandar, M., & Massah, J. (2017). Sensor based definition of buxus stem shearing behavior in impact cutting process. Agricultural Engineering International: The CIGR Ejournal, 19, 29-36. Kanafojiski, C. Z., & Karwowski, T. (1972). Agricultural machines, theory and construction. USA: U.S. Department of Commerce, National Technical Information Service. Nazari Galedar, M., Tabatabaeefar, A., Jafari, A., Sharifi, A., & Rafiee, S. (2008). Bending and shearing characteristics of alfalfa stems. Agricultural Engineering International: The CIGR Ejournal Manuscript FP 08 001. X. Retrieved from https://cigrjournal.org/index.php/Ejounral/article/view/1219/1076. pdf O'Dogherty, M. J., Hubert, J. A., Dyson, J., & Marshall, C. J. (1995). A study of the physical and mechanical properties of wheat straw. Journal of Agricultural Engineering Research, 62, 133-142. Persson, S. (1987). Mechanics of cutting plant material (1st ed.). USA: American Society of Agricultural Engineers. Schulze, K. H. (1953). Uber den schneidvorgang an grashalmen [on the cutting process for grass stems]. Grundlagen der Landtechnik, 5, 98-116. Shahbazi, F., & Nazari Galedar, M. (2012). Bending and shearing properties of safflower stalk. Journal of Agricultural Science and Technology, 14, 743-754. Shaw, M. D., & Tabil, L. G. (2007). Compression, relaxation and adhesion properties of selected biomass grinds. Agricultural Engineering International, the CIGR Ejournal. Manuscript, FP 07006 IX. Sitkei, G. (1986). Mechanics of agricultural materials (1st ed.). Amsterdam, Netherlands: Elsevier Science Publishers. Skubisz, G. (2001). Development of studies on the mechanical properties of winter rape stems. International Agrophysics, 15, 197-200. Srivastava, A. K. (2005). Engineering principles of agricultural machines (2nd ed.). USA: American Society of Agricultural Engineers. Tavakoli, H., Mohtasebi, S. S., & Jafari, A. (2009). Effect of moisture content and loading rate on the shearing characteristics of barley straw by internode position. Agricultural Engineering International: The CIGR Ejournal, Manuscript 1176. Vol. XI. Retrieved from https://cigrjournal.org/index.php/Ejounral/article/view/1176/1168. pdf Wen, B., Li, Y., Kan, Z., Li, J., Li, L., Ge, J., Ding, L., Wang, K., Zou, S., & Li, W. (2020). Experimental research on the bending characteristics of Glycyrrhiza glabra stems. Transactions of the American Society of Agricultural and Biological Engineers, 63, 1499-1506. | ||
|
آمار تعداد مشاهده مقاله: 514 تعداد دریافت فایل اصل مقاله: 431 |
||