Alternative explanation of stiffening in cross-linked semiflexible networks.
Phys Rev Lett
; 95(17): 178102, 2005 Oct 21.
Article
em En
| MEDLINE
| ID: mdl-16383874
ABSTRACT
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.
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Base de dados:
MEDLINE
Assunto principal:
Biopolímeros
/
Modelos Químicos
Idioma:
En
Ano de publicação:
2005
Tipo de documento:
Article