| Title |
Pressure-Dependent Yield Model for Metallic Powder Mixtures and Their Densification Behavior During Die Compaction as Analyzed by the Finite Element Method |
| Authors |
윤승채(Seung Chae Yoon); 김택수(Taek Soo Kim); 강승구(Seung Koo Kang); 김형섭(Hyoung Seop Kim) |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
pressure dependent yield function; metallic powder mixture; cold die compaction; constitutive equation; critical relative density model; finite element method |
| Abstract |
The densification behaviors of mixtures of copper and steel powders during cold die compaction were investigated. We proposed the pressure-dependent yield function based on the rule of the mixtures of each yield function of a critical relative density type. The constitutive equations were implemented into a finite element program (DEFORM2D) to analyze the densification and deformation behavior of powder mixtures, and the simulated results are in good agreement with the experimental results in reference studies. |