Plasticity in passive cell mechanics


Plasticity in passive cell mechanics
Tuesday 17th December 2013
Ambrosi, D.; Ciarletta, P.
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A sufficiently large load applied to a living cell for a sufficiently long time produces a deformation which is not entirely recoverable by passive mechanisms. This kind of plastic behavior is well documented by experiments but is still sel dom investigated in terms of mechanical theories. Here we discuss a finite visco-elasto-plastic model where the rest elongation of the cell evolves in time as a function of the dissipated energy at a microstructural level. The theoretical predictions of the proposed model reproduce, also in quantitative terms, the passive mechanics of optically stretched cells.
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International Journal of Non-Linear Mechanics