Theory of Nonlinear Damping Due to Dislocation Hysteresis

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概要

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• The nonlinear phenomena of damping are analysed in detail and formulated in two integral transformations; the volume and time integrals. This formulation enables one to examine the relationship between damping and tensile experiments in the microstrain range, and to describe the phenomena consistently in terms of dislocation behavior. An analysis of the amplitude-dependent internal friction is made by the use of the breakaway and friction models under the quasi-static condition. The generalized friction model is presented, which is the most appropriate for the analysis of internal friction under the steady-state vibrations in usual experiments. Several convenient formulae are given for the interpretation on dislocation mechanisms. This approach includes some earlier work such as the Granato-Lucke theory and the Davidenkov-Pisarenko formulation as a special case. In addition, the applicability of the Granato-Lucke theory is critically examined with reference to recent observations of stress-strain hysteresis.

• 社団法人日本物理学会の論文
• 1970-10-05

著者

• Asano Shigeru

  Department Of Materials Science And Engineering Nagoya Institute Of Technology

関連論文

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• Stress Tensor of a Finite Dislocation
• Theory of Nonlinear Damping Due to Dislocation Hysteresis
• A Simplified Method for Calculation of Strain Dependence of Internal Friction in Transverse Vibrations
• Evaluation of the Amplitude-Dependent Internal Friction of Materials under Inhomogeneous Strain
• Asymptotic Expressions of the Granato-Lucke Theory under the Influence of Strain Distribution
• Internal Friction Peak in FCC Fe–Cr–Ni Alloys Hydrogen-Charged by Gas-Equilibration Method

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