Overview on the Prediction Models for Sheet Metal Forming Failure:Necking and Ductile Fracture  

作　　者：Qi Hu Feifei Zhang Xifeng Li Jun Chen 

机构地区：[1]Department of Plasticity Technology,Shanghai Jiao Tong University,Shanghai 200030,China [2]Shenzhen Institutes of Advanced Technology,Chinese Academy of Sciences,Shenzhen 518055,China

出　　处：《Acta Mechanica Solida Sinica》2018年第3期259-289,共31页固体力学学报（英文版）

基　　金：financial support from National Natural Science Foundation of China through Grant U1737210

摘　　要：The formability of the material determines the amount of available deformation before failure and thus is important for the production of various structural components in industries. The workability of materiMs is commonly evaluated by different forms of failure mod- els during sheet metal forming （SMF） processes. In order to provide a whole picture about the prediction models for SMF failure, necking-related formability and ductile fracture-related forma- bility studies in SMF processes are systematically summarized, the applicability and limitation of each model are highlighted, and the link between forming limit diagram and ductile fracture criterion is pointed out, Conclusions about some critical issues on failure in SMF are made.The formability of the material determines the amount of available deformation before failure and thus is important for the production of various structural components in industries. The workability of materiMs is commonly evaluated by different forms of failure mod- els during sheet metal forming （SMF） processes. In order to provide a whole picture about the prediction models for SMF failure, necking-related formability and ductile fracture-related forma- bility studies in SMF processes are systematically summarized, the applicability and limitation of each model are highlighted, and the link between forming limit diagram and ductile fracture criterion is pointed out, Conclusions about some critical issues on failure in SMF are made.

关 键 词：NECKING Ductile fracture Failure model Sheet metal forming 

分 类 号：TB306[一般工业技术—材料科学与工程]