| Title |
Analysis of Forming Limit Diagram of An electrogalvanized Steel Sheet |
| Authors |
권재욱(Jae Wook Kwon); 이동녕(Dong Nyung Lee); 김인수(In Soo Kim) |
| Abstract |
Forming limit diagram for an electrogalvanized steel sheet has been measured by hemispherical punch stretching. The experimental forming limit diagram has been compared with results calculated using the shear instability criterion and the M-K model which takes into account a strain gradient effect resulting from bending (curvature) of a flat sheet by punch stretching. The calculated results are in good agreement with experimental data. |