Mesoscopic Simulation on the Compression Deformation Process of Powder Particles

Abstract:

The compression deformation processes of powder particles were investigated by the way of mesoscopic simulation based on finite element method of discrete body. The strain process of the particles in typical position, the deformation difference of the particles in different positions and the strain status of particles were investigated under various compacting pressure. The results show that the deformation process of the compressed powder particles consisted of three stages, which were the initial stage of small deformation, the major stage of the sharply changes of strain and the ultimate stage of strain tending to stable state. The interface friction has a significant influence on the deformation and pressed density of particles close to die wall. The density can not be increased with the increase of compacting pressure of compaction infinitely.

• Periodical: Advanced Materials Research (Volumes 753-755)
• Pages: 896-901
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.753-755.896
• Online since: August 2013
• Authors: Ming Hua Jiao, Long Sun, Man Gu, De Guang Wang, Yu Cheng Wu
• Keywords: Density, Mesoscopic Simulation, Powder Particles, Strain

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