Author(s)

Sindang Djondang^1,2, Tikri Bianzeubé², Ngoidita Natebaye¹, Gamma Adjeffa¹

¹Laboratory of Study and Research in Industrial Technology, Faculty of Applied Sciences, University of N’Djamena, N’Djamena, Chad.
²Laboratory of Structural Mechanics and Resistance of Mateiraux, Polytechnic University of Mongo, Mongo, Chad.

The New Holland TT75 tractors currently in service in Chad use a tractor arm with three holes, the middle one of which has recurrent failures due to traction. The purpose of this work is to use a finite element model to provide an improvement by modifying the geometric parameters to avoid premature failure of the tractor arms of the New Holland TT75. The ultimate force formula of Eurocode 3 was used to determine the maximum pressure to be applied and. A comparative traction study between the current arm and the proposed arm was performed, taking into account the variation in hole size, arm width and applied pressure for the determination of the stress concentration factor Kt. With the determination of Kt and for the arm width (w) less than or equal to 85 mm; the results showed that the proposed arm geometry is better.

Tractor, Stress Concentration Factor, Hole Diameter, Arm Width and Pressure

Djondang, S. , Bianzeubé, T. , Natebaye, N. and Adjeffa, G. (2023) Study Two-Dimensional and Three-Dimensional of the Stress Concentration of the Traction Arm of the NEW HOLLAND TT75 Tractor in Service in CHAD. Open Journal of Applied Sciences, 13, 212-223. doi: 10.4236/ojapps.2023.132018.