Macroscopic and Microscopic Investigation on the History Dependence of the Mechanical Behaviour of Powders

Details Macroscopic and Microscopic Investigation on the History Dependence of the Mechanical Behaviour of Powders Macroscopic and Microscopic Investigation on the History Dependence of the Mechanical Behaviour of Powders

2003-03-07

arxiv.org/abs/cond-mat/0303132v1

Chemical Engineering Transactions 3, 979-984 (2003)

Physics

Condensed Matter

6 pages, 5 figures

Scientific paper

As an example for history dependent mechanical behaviour of cohesive powders experiments and computer simulations of uniaxial consolidation are compared. Some samples were precompacted transversally to the consolidation direction and hence had a different history. The experiments were done with two carbonyl iron powders, for which the average particle diameters differed by a factor of ca. 2. Whereas the particle diameter was the only characteristic length in the simulations, the evaluation of the experimental data indicates that at least a second characteristic length must be present.

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