The rheology of cellular systems
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If you have a question about this talk, please contact Jurij Kotar.
This talk will address various aspects of the mechanics of disordered
cellular systems. In a first part, I will focus on a simple passive
material: liquid foam. Its quasistatic rheology will be discussed, based on
numerical and experimental results. In particular, the appearance of
heterogeneous flow profiles in simple shear geometries as well as the role
of long range elastic fluctuations will be described. In a second part, I
will present an ongoing work on quantifying embryo morphogenesis. We
introduce a kinematic description which captures the range of behaviours
observed in reshaping embryos. It provides a comprehensive framework for
measuring and exploring the patterns and rates of morphogenesis at an
intermediate or mesoscopic scale of local domains of ~20 cells where key
morphogenetic behaviours such as convergence and extension become non
ambiguously measurable.
This talk is part of the BSS Formal Seminars series.
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Dr Alexandre Kabla, Department of Engineering, University of Cambridge
Friday 23 November 2007, 14:15-15:15