Pressure-Dependent Yield Model for Metallic Powder Mixtures and Their Densification Behavior During Die Compaction as Analyzed by the Finite Element Method
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- Title
- Pressure-Dependent Yield Model for Metallic Powder Mixtures and Their Densification Behavior During Die Compaction as Analyzed by the Finite Element Method
- Authors
- Yoon, SC; Kim, TS; Kang, SK; Kim, HS
- Date Issued
- 2009-09
- Publisher
- KOREAN INST METALS MATERIALS
- 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.
- Keywords
- pressure dependent yield function; metallic powder mixture; cold die compaction; constitutive equation; critical relative density model; finite element method; COMPOSITE POWDERS; COLD COMPACTION; CONSOLIDATION; ALLOY
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/26415
- ISSN
- 1738-8228
- Article Type
- Article
- Citation
- JOURNAL OF THE KOREAN INSTITUTE OF METALS AND MATERIALS, vol. 47, no. 9, page. 567 - 572, 2009-09
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