Sessiz, AbdullahÖzdemir, GültekinEliçin, Ahmet Konuralp2024-04-242024-04-242024Sessiz, A. ve Özdemir, G. (2024). Shear tests of grapevine (Vitis vinifera L.) canes. Lecture Notes in Civil Engineering, 458, 39-50.97830315157812366-2557https://doi.org/10.1007/978-3-031-51579-8_5https://hdl.handle.net/11468/23223https://link.springer.com/chapter/10.1007/978-3-031-51579-8_515th International Congress on Agricultural Mechanization and Energy in Agriculture, ANKAgEng 2023 -- 29 October 2023 through 1 November 2023 -- -- 307249In this study, shearing force, energy, strength and specific shearing energy values of the pruned branches of three local grape (Vitis vinifera L.) varieties (Öküzgözü, Boğazkere and Şire) were determined and compared. The aim of the study is to obtain appropriate data for the design of a machine that can be used in shredding vineyard pruning residues. In accordance with this purpose, the shear tests were carried out with three different knife shapes, two of them are serrated type (serrated 1 -knife-edge thick, serrated 2 -knife-edge thin) and flat (knife-edge flat) with five knife edge angles (50°, 60°, 70°, 80° and 90°). The shear tests were made by Instron Universal Materials Testing Machine, Lloyd LRX Plus. According to test results, maximum shearing force, strength and energy values were obtained at knife of serrated 1 (knife-edge thick) type, the lowest average value was observed at serrated 2 type knife as 382.77 N. The shearing force slowly decreased with increasing knife-cutting angle from 0° to 40°. The maximum shearing force was observed at 0° knife cutting angle as 426.90 N. The lowest values were obtained at 30° and 40° cutting angle. However, when all interaction of Duncan test results is considered, maximum shearing force was observed at serrated 1 knife, 10° shearing angle, and the cane of Öküzgözü grape variety as 669 N, the lowest value of cutting force was observed at Flat-edge knife type, 40° cutting angle and the Şire grape variety as 205.50 N.eninfo:eu-repo/semantics/closedAccessBranch shreddingGrapevine caneShear forceShear testShearing strengthConference Object458 LNCE39502-s2.0-8518482950110.1007/978-3-031-51579-8_5Q4