Dynamical law for slow crack growth in polycarbonate films

被引：9

作者：

Cortet, Pierre-Philippe ^{[1
]}

Vanel, Loiec ^{[1
]}

Ciliberto, Sergio ^{[1
]}

机构：

[1] Univ Lyon, Ecole Normal Super, CNRS, Phys Lab, Lyon, France

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.99.205502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study experimentally the slow growth of a single crack in polycarbonate films submitted to uniaxial and constant imposed stress. For this viscoplastic material, we uncover a dynamical law that describes the dependence of the instantaneous crack velocity with experimental parameters. The law involves a Dugdale-Barenblatt static description of crack tip plastic zones associated to an Eyring's law and an empirical dependence with the crack length that may come from a residual elastic field.

引用

页数：4

共 32 条

[1]

Barenblatt GI., 1962, ADV APPL MECH, V7, P55, DOI DOI 10.1016/S0065-2156(08)70121-2

[2]

BAUWENSCROWET C, 1972, J MATER SCI, V7, P176, DOI 10.1007/BF02403504

[3] Athermal shear-transformation-zone theory of amorphous plastic deformation. II. Analysis of simulated amorphous silicon [J].