Calculation of Temperature and Pressure Dependence of Elastic Constants for Alminum

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概要

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• Adiabatic elastic constants for aluminum are calculated by a pseudopotential method in various atomic volumes, which correspond to arbitrary pressure and temperature. A temperature dependence of the ideal strength and the surface energy is evaluated from the stress-strain relation in <100> deformation mode up to the fracture strain. Using Lindemann's low, a pressure dependence of the melting point is also evaluated from the elastic constant C_<11> at the melting temperature and is compared with existing experimental data. Finally, a method to obtain isothermal elastic constants is discussed by using Gruneisen parameter defined for <100> deformation.

• 一般社団法人日本機械学会の論文

著者

• Matsumuro Akihito

  Faculty Of Engineering Nagoya University

• Senoo Masafumi

  Faculty Of Engineering Nagoya University

• Senoo Masafumi

  Faculty Of Engineering Mie University

関連論文

• Measurement of the Elastic Constants of Polycrystals in a Cylindrical Specimen by the Resonance Method : Elastic Anisotropy of an Axisymmetrical Specimen and Measurements at Low and High Temperatures : Solid-Mechanics, Strength of Materials
• Calculation of Temperature and Pressure Dependence of Elastic Constants for Alminum
• Measurement of the Elastic Constants of Polycrystals by the Resonance Method in a Cylindrical Specimen : Measurement at Liquid He Temperature
• Variations of Elastic Constants on Al-Si Alloys by Solid-solutioning under High Pressure
• Elastic Constants of Al-Cu Solid-Solution Alloys and Their Variations by Aging Treatments

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