MODELING THE VARIABILITY OF THE VIRTUAL YOUNG MODULE DURING THE CONSOLIDATION OF FINE-GRAINED MATERIALSJournal: Young Scientist (Vol.6, No. 12)
Publication Date: 2018-12-01
Authors : Bembenek Michał;
Page : 229-235
Keywords : fine grained materials; consolidation; briquetting; pressure agglomeration; Young’s module;
Pressure agglomeration is one of the basic methods of merging powdery and fine-grained materials. The process takes place under pressure reaching even several hundred MPa. You can divide it into two phases. In the first stage in which there is a change in the packing of the material particles, comparatively high degrees of compaction are obtained under the application of small values of external forces. In the second phase, however, the particles merge together and the formation of a quasi-continuous body. This results in much lower degrees of compaction under the influence of high values of external forces. In both phases there is continuous change of parameters describing bulk material, among others: Young's modulus, coefficient of external and internal friction, and lateral thrust coefficient. The paper deals with the problem of developing a Young's modulus variability model for fine-grained materials during their pressure.
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