Rheology articles within Nature Physics

Featured

  • Article |

    Dense suspensions are granular materials suspended in a liquid at high packing fractions, exhibiting high viscosity. The latter is now shown to be related to the formation of a network of rigid clusters at large shear stress.

    • Michael van der Naald
    • , Abhinendra Singh
    •  & Heinrich M. Jaeger

  • Article |

    The yielding transition in concentrated colloidal suspensions and emulsions lacks a universal description. A unified state diagram is now shown to underlie yielding for these materials, analogous to the van der Waals phase diagram for non-ideal gases.

    • Stefano Aime
    • , Domenico Truzzolillo
    •  & Luca Cipelletti

  • Article |

    The cell cortex stiffens during cell division, facilitating the necessary shape changes. Microrheology measurements now reveal that the rest of the cell interior actually softens, in a process that probably involves two key biomolecules trading roles.

    • Sebastian Hurst
    • , Bart E. Vos
    •  & Timo Betz

  • Research Highlight |

    • Elizaveta Dubrovina

  • Article |

    A study of robots jumping on granular media reveals that performance depends on an added-mass effect born of grains solidifying on impact. Techniques that are optimized for launching off hard surfaces are shown to be compromised by the effect.

    • Jeffrey Aguilar
    •  & Daniel I. Goldman

  • News & Views |

    Crushing a brittle porous medium such as a box of cereal causes the grains to break up and rearrange themselves. A lattice spring model based on simple physical assumptions gives rise to behaviours that are complex enough to reproduce diverse compaction patterns.

    • Nicolas Vandewalle

  • Letter |

    When compacting a brittle porous medium—think stepping on fresh snow—patterns develop. Simulations and densification experiments with cereals now provide an understanding of compaction patterns in terms of a lattice model with breakable springs.

    • François Guillard
    • , Pouya Golshan
    •  & Itai Einav

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