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Unexpected collapses during isotropic consolidation of model granular materials
2016
Comptes rendus. Mecanique
This paper reports the unexpected instantaneous instabilities of idealized granular materials under simple isotropic drained compression. Specimens of monosized glass beads submitted to isotropic compression exhibit a series of local collapses under undetermined external stress with partial liquefaction, experience sudden volumetric compaction and axial contraction of various amplitude. Short-lived excess pore water pressure vibrates like an oscillating underdamped system in the first dynamic
doi:10.1016/j.crme.2015.11.001
fatcat:sk65molderclro2olu4hiqr77a