紀要論文

マルチモード共振法による最密六方金属の弾性異方性解析

ELASTIC ANISOTROPY ANALYSIS OF HEXAGONAL METAL BY MULTI-MODE RESONANCE METHOD

jpn

24368083

https://doi.org/10.15002/00025267

法政大学大学院理工学研究科

法政大学大学院紀要. 理工学研究科編

63

1

8

2022-03-24

Version of Record

ヘッダー部分に誤記 ; (誤) 法政大学大学院紀要理工学・工学研究科編 (正) 法政大学大学院紀要理工学研究科編

Elastic constants are indispensable for mechanical design and stress analysis as material constants that govern the deformation and natural frequency of materials. And they are closely related to various physical properties and important physical properties. In addition to the development of lightweight and high-strength materials non-ferrous metals with a hexagonal close-packed structure, such as magnesium alloys and titanium, are attracting attention as the next generation of lightweight materials, analysis of elastic anisotropy and high-accuracy measurement of materials have become important issues. In this study, we established a precise measurement method of resonance frequency under free vibration using a small test piece (Multi-Mode resonance method), and completed a natural vibration analysis (Inverse analysis method) combining the finite element method and the Rayleigh-Ritz method. The objective is to determine the elastic modulus matrix of a material with high accuracy. The purpose of this study is to realize elastic anisotropy analysis of Magnesium alloy, Titanium alloy and Pure Titanium alloy that are assumed to have elastic anisotropy by plastic working. We discuss the results of calculating the elastic modulus matrix obtained by inverse analysis.

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