Flange earrings of strong anisotropic sheet metals in deep-drawing process are numerically analyzed by the elastic-plastic large deformation finite element formulation based on a discrete Kirchhoff triangle plate shel...Flange earrings of strong anisotropic sheet metals in deep-drawing process are numerically analyzed by the elastic-plastic large deformation finite element formulation based on a discrete Kirchhoff triangle plate shell element model. A Barlat-Lian anisotropic yield function and a quasi-flow corner theory are used in the present formulation. The numerical results are compared with the experimental ones of cylindrical cup drawing process. The focus of the present researches is on the numerical analysis and the constraining scheme of the flange earring of circular sheets with strong anisotropy in square cup drawing process.展开更多
The influence of stress state on earing behavior in cup drawing of BCC metals is analyzed by use of the modified Tucker method. The results show that, this influence varies with orientations, and that the earing beha...The influence of stress state on earing behavior in cup drawing of BCC metals is analyzed by use of the modified Tucker method. The results show that, this influence varies with orientations, and that the earing behavior can be well predicted by the total slip model.展开更多
基金The project supported by the National Natural Science Foundation of China (19832020)Provincial Natural Science Foundation of Jilin, China (200000519)
文摘Flange earrings of strong anisotropic sheet metals in deep-drawing process are numerically analyzed by the elastic-plastic large deformation finite element formulation based on a discrete Kirchhoff triangle plate shell element model. A Barlat-Lian anisotropic yield function and a quasi-flow corner theory are used in the present formulation. The numerical results are compared with the experimental ones of cylindrical cup drawing process. The focus of the present researches is on the numerical analysis and the constraining scheme of the flange earring of circular sheets with strong anisotropy in square cup drawing process.
文摘The influence of stress state on earing behavior in cup drawing of BCC metals is analyzed by use of the modified Tucker method. The results show that, this influence varies with orientations, and that the earing behavior can be well predicted by the total slip model.
