摘要
Experimental and numerical analyses for the effect of the thickness of gap generator blank（GGB） on the formability of the outer blanks were investigated. The thickness of the GGB has the greatest impact on the thinning of the lowest blank. In addition, the friction at different regions and the additional interlayer contacts can also affect the thinning of different regions as well as increase the punch force. This work will enhance the understanding of simultaneous multi-layered blanks forming and will help the composite design engineers to tailor requirement-specific hybrid parts such as fiber metal laminates（FMLs） and functionally graded structures（FGSs） for hi-tech applications.
通过数值模拟与试验研究间隙产生层板的厚度对多层板中最外层板的成形性能的影响。研究结果表明,间隙产生层板的厚度对最底层板减薄的影响最大。此外,不同部位的摩擦和中间层板间的接触对不同位置的减薄也有影响,并且凸模力随着摩擦力的增加而增大。通过该研究可以加深对多层板同步成形的认识,并且能帮助复合材料工程师设计生产出如纤维增强金属层板和功能梯度构件等具有特殊要求的高性能混合零件。
基金
Project(2010DFA52030)supported by the International Scientific Cooperation,China
Project(51175024)supported by the National Natural Science Foundation of China
