Beier, Heinz Thomas ; Schork, Benjamin ; Bernhard, Julian ; Tchoffo Ngoula, Désiré ; Melz, Tobias ; Oechsner, Matthias ; Vormwald, Michael (2014):
Simulation of fatigue crack growth in welded joints.
pp. 1-18, 4th Symposium on Structural Durability in Darmstadt, Darmstadt, 14.-15.5.2014, [Conference or Workshop Item]
Abstract
This paper gives an overview on recent research results of the Darmstadt group inside a project called IBESS. Purpose of this project is the fracture mechanics based simulation of Wöhler-curves (S-N-curves) of welded joints. Part of this project is the investigation of initial defects and imperfections of welded joints. Metallographic and fractographic investigations have been done to derive a definition of an initial crack situation. --- SzM --- Another part of IBESS gives attention to the stability of the residual stress field in a welded joint due to the transient plastic deformation behaviour under cyclic loading. Numerical simulations using Döring’s material model have been done to investigate the effect of a cyclic loading on a residual stress field in an uncracked and a cracked situation.
| Item Type: | Conference or Workshop Item |
|---|---|
| Erschienen: | 2014 |
| Creators: | Beier, Heinz Thomas ; Schork, Benjamin ; Bernhard, Julian ; Tchoffo Ngoula, Désiré ; Melz, Tobias ; Oechsner, Matthias ; Vormwald, Michael |
| Title: | Simulation of fatigue crack growth in welded joints |
| Language: | English |
| Abstract: | This paper gives an overview on recent research results of the Darmstadt group inside a project called IBESS. Purpose of this project is the fracture mechanics based simulation of Wöhler-curves (S-N-curves) of welded joints. Part of this project is the investigation of initial defects and imperfections of welded joints. Metallographic and fractographic investigations have been done to derive a definition of an initial crack situation. --- SzM --- Another part of IBESS gives attention to the stability of the residual stress field in a welded joint due to the transient plastic deformation behaviour under cyclic loading. Numerical simulations using Döring’s material model have been done to investigate the effect of a cyclic loading on a residual stress field in an uncracked and a cracked situation. |
| Divisions: | 13 Department of Civil and Environmental Engineering Sciences 13 Department of Civil and Environmental Engineering Sciences > Institute of Steel Constructions and Material Mechanics 13 Department of Civil and Environmental Engineering Sciences > Institute of Steel Constructions and Material Mechanics > Fachgebiet Werkstoffmechanik |
| Event Title: | 4th Symposium on Structural Durability in Darmstadt |
| Event Location: | Darmstadt |
| Event Dates: | 14.-15.5.2014 |
| Date Deposited: | 02 Jul 2014 12:02 |
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