| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
In-plane Stretch-bending Test for Determination of Large-strain Workhardening and Fracture of Sheet Metals |
| Author(s) |
Ryutaro Hino, Gustavo Capilla, Hiroshi Hamasaki, Koudai Watanabe, Fusahito Yoshida |
| On-Site Speaker (Planned) |
Ryutaro Hino |
| Abstract Scope |
In-plane stretch-bending tests have been conducted to determine workhardening behavior at large strain and edge fracture limit of several high-strength steel (HSS) sheets. In this test a metal strip is bent in its width direction under longitudinal tensile force, and the outer edge of the bent strip undergoes a large uniaxial stretching which is much larger than the uniform elongation in conventional tensile test. Then a stress-strain curve at large strain can be determined through an inverse approach based on the experimental result and the corresponding FE analysis. In addition, localized necking and fracture limit strain at the outer edge of the bent strips are investigated by using the digital image correlation technique to discuss edge fracture limit (stretch flangeability) of the HSS sheets. Significance of a large-strain workhardening model and an anisotropic yield function is demonstrated by FE simulation of strain-localization in in-plane stretch bending. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |