Finite Element Simulation of Cyclic Channel Die Compression with Route A

Feng Jian Shi; Tao Xu; Sheng Lu; Lei Gang Wang

doi:10.4028/www.scientific.net/AMM.44-47.1300

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 44-47Finite Element Simulation of Cyclic Channel Die...

Finite Element Simulation of Cyclic Channel Die Compression with Route A

Abstract:

In this paper, effective strain and load were simulated by rigid-plastic finite element method (FEM) during cyclic channel die compression (CCDC) with route A, and the optical microstructure was observed. The results show that large strain can be accumulated in the material by CCDC. The load variation includes two stages, slowly linear increase and rapid increase. At the end of the CCDC, the compression load rises rapidly. Apart from the edges of the specimen, the effective strain is higher in the central region and lower at the surrounding region. The effective strain gradient increases with the number of compression. Grain refinement at the central zone is faster due to the strain inhomogeneity. But the peripheral zone is also refined with the number of CCDC. This illustrates CCDC is a promising method for producing bulk ultra-fine grained materials.

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Periodical:

Applied Mechanics and Materials (Volumes 44-47)

Pages:

1300-1304

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https://doi.org/10.4028/www.scientific.net/AMM.44-47.1300

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Online since:

December 2010

Authors:

Feng Jian Shi, Tao Xu, Sheng Lu, Lei Gang Wang

Keywords:

Cyclic Channel Die Compression, Effective Strain, Finite Element (FE) Simulation, Microstructure

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