Alternative Explanation of Stiffening in Cross-Linked Semiflexible Networks

P.R. Onck, T. Koeman, T. van Dillen, E. van der Giessen


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Strain stiffening of filamentous protein networks is explored by means of a finite strain analysis of a two-dimensional network model of cross-linked semiflexible filaments. The results show that stiffening is caused by nonaffine network rearrangements that govern a transition from a bending-dominated response at small strains to a stretching-dominated response at large strains. Filament undulations, which are key in the existing explanation of stiffening, merely postpone the transition.
Originele taal-2English
Aantal pagina's4
TijdschriftPhysical Review Letters
Nummer van het tijdschrift17
StatusPublished - 18-okt.-2005

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