1. Üç boyutlu ve iki boyutlu eleman tiplerinin punta kaynaklı bileşenlerin gerilme ve ömür analizleri üzerindeki etkisi.
- Author
-
DURAN, Ertuğrul Tolga
- Subjects
- *
HIGH cycle fatigue , *SPOT welding , *STRAINS & stresses (Mechanics) , *METHODS engineering , *FINITE element method , *DYNAMIC loads - Abstract
Finite element analysis and computer-aided engineering methods have an essential role in modern research and development projects. Although proper element selection for the modeling type is critical for the accuracy of simulations, the selection process might be difficult for researchers in some cases where geometric conditions are challenging. The main objective of this paper is to present the differences in simulation results when three-dimensional cubic and two-dimensional quadrilateral elements are used for the modeling of spot-welded components. Following the modeling of shear specimens having two spot welds with different element types, static analysis, and high cycle fatigue simulations at three different dynamic load cases have been run within the context of this study. Displacement, stress values and tensors, as well as high cycle fatigue life have been evaluated as the output of analysis, and deviations due to different element types have been reported. Accuracy levels of different element types have been determined by comparing the life obtained by simulations with high cycle fatigue tests. The studies conducted within the content of this paper indicate that the rigid spot weld modeling with two dimensional quadrilateral elements give better consistency with the fatigue tests in comparison with the modeling with three dimensional cubical elements. The modeling procedures of correlated high cycle fatigue simulations have been detailed for spot welding, which is one of the most applied methods in aviation, automotive and marine industry. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF