Fatigue behaviour of sheet-bulk metal formed workpieces (C06)

在子项目C6中，将在实际条件下检查薄板体金属成形件的使用寿命。因此，在第三阶段，要使用齿轮传动试验装置来考虑微观组织中不均匀的加工硬化区域和由于成形过程而产生的剩余残余应力状态。第三期子项目C6的目标是扩展裂纹扩展模型，建立考虑残余应力状态的整体疲劳寿命预测。

Within the subproject C6 the service life of sheet-bulk metal formed parts is to be examined under realistic conditions. Therefore in the third period a gearing test apparatus is to be used to account both inhomogeneous work hardened regions in the microstructure and the remaining residual stress state due to the forming process. Target for the subproject C6 in the third period is to expand the crack growth model in order to create a holistic fatigue life prediction, taking the residual stress state into account.