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Öğe Numerical analysis of damaged helical gear wheel(Batman Üniversitesi, 2021-06-30) Adin, Hamit; Adin, Mehmet ŞükrüIn the present day, gear wheels are used to transmit mechanical power in land, sea and air vehicles. Damages can sometimes occur in these gear wheels used in machines. In order to prevent these damages, the use and importance of numerical programs increase with the developing technology. Damages that may occur can be determined in advance through these programs. Thus, material selection can be made with cost-effective analysis. In this study, a damaged helical gear, which is frequently used in car engines, was analyzed numerically. In the study, the damaged helical gear was first modeled with the help of Solidworks program and then static stress analysis was performed with the ANSYS Workbench Finite Elements Package program. In the analysis, the properties of the helical gear made of structural steel were used. As a result of the study, it was determined that the helical gear was broken due to exceeding the safety stress limit.Öğe Numerical investigation of fatigue behavior of non-patched and patched aluminum/composite plates(Ahmet ÇALIK, 2021-12-20) Adin, Hamit; Sağlam, Zeyni; Adin, Mehmet ŞükrüIn this study, the fatigue behavior of composite patched and non-patched Al 5083 aluminum plates was numerically investigated. Al 5083 Aluminum plates with semi-circular notched (2, 3 and 4 mm long cracked) and "V" notched (30°, 45° and 60° angled) were used in the analyzes. Mechanical properties of Al 5083 Aluminum plate, DP460 type adhesive of produced by 3M and [0°]8 glass fiber reinforced composite patch material was used for the study. The Finite Element Method was applied for numerical study. Numerical analyzes were performed with the Ansys version 15.0 Workbench Package program. As a result of the numerical study, the highest fatigue life (1593.2 N) is seen on the 30° angled "V" notched and patched specimen. However, the fatigue life in non-patched specimen (30° angled "V" notched) was found to be 277.69 N. Thus, the study revealed that the composite patch's contribution is very important.
