diagram of forming limit

Some foreign scholars developed the concept of Forming Limit Stress Diagram (FLSD) on the basis of FLD. FLSD is considered as strain path independent.

一些国外学者在板料成形极限图的基础上提出了板料应力成形极限图(FLSD)的概念，并认为板料应力成形极限图具有与路径无关的特点。

By analyzing the real stress - strain curve with theory of plastic instability and using this testing method, another form of the forming limit diagram has been found.

在利用共稳理论对实际应力应变曲线进行分析的同时，得出了求作板材成形极限图的新方法。

In view of this situation, the improving processes are proposed based on the Theoretical Forming Limit Diagram analysis.

针对这种情况，从理论成形极限图上讨论了可能的工艺改进方案。