The origin of stiffening in cross-linked semiflexible networks

Details The origin of stiffening in cross-linked semiflexible networks The origin of stiffening in cross-linked semiflexible networks

2005-02-16

arxiv.org/abs/cond-mat/0502397v1

Physics

Condensed Matter

Soft Condensed Matter

5 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.95.178102

Strain stiffening of 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 non-affine network rearrangements that govern a transition from a bending dominated response at small strains to a stretching dominated response at large strains. Thermally-induced filament undulations only have a minor effect; they merely postpone the transition.

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