船体構造用多結晶金属材料の繰返し塑性変形挙動の数値シミュレーションに関する研究(その6) : 微視的変形機構に基づく繰返しすべり変形挙動の近似計算法

概要

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The propriety of the approximate calculation method for cyclic deformation behavior analysis proposed by Reppeto-Ortiz[Acta mater. 45, 6(1997)2577-2595]based on the constitutive model developed by Ortiz-Popov[Proc.R.Soc.Lond.A 379(1982)439-458]which emanates directly from a clear micromechanical picture is examind. It is needed to establish such calculation method in order to deepen our understanding of micromechanical aspects of PSBs formation process. As a result, it is found that Repetto's approximate method gives a good account of the nature of the relationship between shear atress range and shear strain range qualitatively and quantitatively.
社団法人日本船舶海洋工学会の論文
2000-03-25