ACOUSTIC EMISSIONS FROM RAPIDLY MOVING CRACKS

被引：126

作者：

GROSS, SP ^{[1
]}

FINEBERG, J ^{[1
]}

MARDER, M ^{[1
]}

MCCORMICK, WD ^{[1
]}

SWINNEY, HL ^{[1
]}

机构：

[1] UNIV TEXAS,DEPT PHYS,AUSTIN,TX 78712

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.71.3162

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Linear elasticity is unable to predict completely the dynamics of a rapidly moving crack without the addition of a phenomenological fracture energy. Our measurements of acoustic emission, crack velocity, and surface structure demonstrate quantitatively similar dynamical fracture behavior in two very different materials, polymethlymethacrylate and soda-lime glass. This unexpected agreement suggests that there exist universal features of the fracture energy that result from dissipation of energy in a dynamical instability.

引用

页码：3162 / 3165

页数：4

共 17 条

[1] RADIATED SEISMIC ENERGY AND STRAIN-ENERGY RELEASE IN LABORATORY DYNAMIC TENSILE FRACTURE [J].