Theoretical and experimental study of energy dissipation in the course of strain localization in iron

被引：0
|
作者：
O. A. Plekhov
O. B. Naimark
机构：
[1] Russian Academy of Sciences,Institute of Mechanics of Continuous Media, Ural Division
来源：
Journal of Applied Mechanics and Technical Physics | 2009年 / 50卷
关键词：
thermodynamics and mesomechanics of defects; energy dissipation; infrared thermography;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Plastic strain localization is studied with the use of a high-sensitivity infrared camera. Plastic strain localization in iron is demonstrated to be accompanied by the emergence of heat waves and their propagation over the sample surface. Constitutive equations that describe the energy balance in the material under plastic strains are derived, and the plastic flow of iron is analyzed. The results of research are compared with the data obtained by infrared scanning. The proposed model of strain localization in the form of soliton-like waves (phase triggering waves) is demonstrated to agree with the kinetics of temperature waves characterizing dissipation inherent in the development of plastic deformation.
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页码：127 / 136
页数：9
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