Forming limit diagrams are commonly used in sheet metal industry to define the safe forming regions. These diagrams are built to define the necking strains of sheet metals. However, with the rise in the popularity of advance high strength steels, ductile fracture through damage evolution has also emerged as an important parameter in the determination of limit strains. In this work, damage evolution in two different steels used in automotive industry is examined to observe the relationship between damage evolution and the strain path that is followed during the forming operation.
|Title of host publication
|Proceedings of the 10th ESAFORM Conference on Material Forming, 18-20 April 2007, Zaragoza, Spain
|E. Cueto, F. Chinesta
|Place of Publication
|Published - 2007