| 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 |
Anisotropic Ductile Fracture Estimation of Diagonal Cracks in Flange-shaped Parts |
| Author(s) |
Atsuo Watanabe, Kunio Hayakawa, Shinichiro Fujikawa, Tatsumi Takeshita, Mika Furutani |
| On-Site Speaker (Planned) |
Atsuo Watanabe |
| Abstract Scope |
Inclined rotary forming (IRF) is a combined process of bending and axial compression with rotation, which is used to forge flange shaft-structured parts from round rod billets. Although the forming load is less than that of conventional processes, cracks may develop during the IRF process. However, it is difficult to predict cracks by applying the conventional ductile fracture prediction equations. In this paper, an equation for predicting ductile fractures is proposed that considers anisotropic ductile fractures. The proposed equation was expressed as a second rank tensor resulting from the product of the stress tensor and strain increment tensor. The proposed equation was verified through a uniaxial tensile test conducted on a notched round bar and the compression test of cylindrical specimen referring to the past literature. The proposed equation was applied to the IRF process. Consequently, it was possible to estimate the lubrication conditions that make diagonal cracks smaller. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |