Measurement of shear elasticity and viscosity of rubberlike materials

被引：0
作者：
V. G. Andreev
T. A. Burlakova
机构：
[1] Moscow State University,Faculty of Physics
来源：
Acoustical Physics | 2007年 / 53卷
关键词：
43.25.Ba; 43.35.Mr;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The method and results of measuring the shear elastic modulus of a rubberlike polymer by the deformation of a plane elastic layer are described. For shear deformations not exceeding 0.5 of the layer thickness, the shear modulus is constant and its value is in agreement with the value determined by pressing a rigid ball against the polymer layer. For deformations exceeding 0.5 of the layer thickness, the stress-strain dependence becomes nonlinear. The coefficient of shear viscosity is determined from the shear wave form generated by focused ultrasound in a homogeneous polymer sample.
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页码：44 / 47
页数：3
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