高速率成形中材料本构关系的研究进展

Research progress of material constitutive behavior in high velocity forming

在分析高速率成形中材料成形性影响因素的基础上,阐述了高速率成形中材料本构关系的研究进展.指出应变速率界限决定高速率成形中材料本构关系的变化,工件几何外形对材料本构关系有较大地影响.介绍了塑性动力分析在高速率成形中材料本构关系中的应用.

Based on the analysis of factors influencing material formability in high velocity forming （HVF）, the state-of-the-art research on constitutive behavior of HVF was summarized. It concluded that the change of constitutive behavior was determined by the level of strain-rate and effected by the geometric shape of workpieces. And the application of plastic dynamic analysis was also introduced in the research of material constitutive behavior in high velocity forming process.