年次大会講演論文集
Online ISSN : 2433-1325
セッションID: 1124
会議情報
1124 A7075アルミニウム合金の2軸応力下における粘塑性・時効特性に関する研究(J13 工業材料の機械的特性,ジョイントセッション,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)
竹内 彩陽金子 堅司榎本 和城
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抄録
In this study, effects of viscosity and aging on plastic behavior of A7475 aluminum alloy under biaxial loading and in stress relaxation at several temperatures, are investigated experimentally, and are analyzed theoretically based on the Two-Factors constitutive concept, which means the overstress concept including aging effect. As much as temperature become higher, viscosity stress increases, on the other hand, aging stress decreases. Both viscosity and aging in axial loading are larger than those in torsional loading. The model based on Two-Factors constitutive concept gives systematic predictions on both plastic flow behavior and relaxation behavior for each loading direction.
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© 2008 一般社団法人日本機械学会
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