Compaction dynamics of a granular medium under vertical tapping

by: P Philippe, D Bideau

EPL (Europhysics Letters), Vol. 60, No. 5. (2002), pp. 677-683.

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DOI, http://www.iop.org/EJ/abstract/0295-5075/…

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Abstract

We report new experimental results on granular compaction under consecutive vertical taps. The evolution of the mean volume fraction and of the mean potential energy of a granular packing presents a slow densification until a final steady state, and is reminiscent of usual relaxation in glasses via a stretched exponential law. The intensity of the taps seems to rule the characteristic time of the relaxation according to an Arrhenius's type relation. Finally, the analysis of the vertical volume fraction profile reveals an almost homogeneous densification in the packing.

@article{Philippe2002, abstract = {We report new experimental results on granular compaction under consecutive vertical taps. The evolution of the mean volume fraction and of the mean potential energy of a granular packing presents a slow densification until a final steady state, and is reminiscent of usual relaxation in glasses via a stretched exponential law. The intensity of the taps seems to rule the characteristic time of the relaxation according to an Arrhenius's type relation. Finally, the analysis of the vertical volume fraction profile reveals an almost homogeneous densification in the packing.}, author = {Philippe, P. and Bideau, D. }, citeulike-article-id = {2783161}, doi = {10.1209/epl/i2002-00362-7}, journal = {EPL (Europhysics Letters)}, keywords = {granular\_compaction, qual, qualifier}, number = {5}, pages = {677--683}, posted-at = {2008-05-10 20:05:09}, priority = {2}, title = {Compaction dynamics of a granular medium under vertical tapping}, url = {http://dx.doi.org/10.1209/epl/i2002-00362-7}, volume = {60}, year = {2002} }

RIS record

TY - JOUR ID - Philippe2002 L3 - citeulike-article-id:2783161 TI - Compaction dynamics of a granular medium under vertical tapping JF - EPL (Europhysics Letters) VL - 60 IS - 5 SP - 677 EP - 683 N2 - We report new experimental results on granular compaction under consecutive vertical taps. The evolution of the mean volume fraction and of the mean potential energy of a granular packing presents a slow densification until a final steady state, and is reminiscent of usual relaxation in glasses via a stretched exponential law. The intensity of the taps seems to rule the characteristic time of the relaxation according to an Arrhenius's type relation. Finally, the analysis of the vertical volume fraction profile reveals an almost homogeneous densification in the packing. KW - granular_compaction KW - qual KW - qualifier AU - Philippe, P AU - Bideau, D PY - 2002/// UR - http://dx.doi.org/10.1209/epl/i2002-00362-7 ER -

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