This project concluded that the FLSD is strain path independent and can be use as abetter criterion in sheet metal forming process, especially in the application ofmulti-stage sheet metal forming.

• 通过本次课题研究,证实了不同加载路径下的板料应力成形极限图接近程度良好,可以认为是与加载路径无关的,是比板料成形极限图更为合理的板料成形破坏判剧。