442 単純せん断と純粋せん断状態における多結晶体表面変化の有限要素法による比較・検討

概要

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In the authors' series study on ultrasonic nondestructive evaluation method, longitudinal wave velocities propagating in the plastically deformed medium under simple and pure shear states were apparently different from each other. The investigation has suggested that the point defects induced by cross slip were one of the major reasons to cause such differences. As one of studies on this phenomenon, the current paper will present the authors extended investigation on how the surface morphology, i.e. surface roughness is developed under both shear states via finite element polycrystal model. Finally, the authors will also give a quantitative analysis on the irregularity of surface roughness via fractional dimensional analysis.
社団法人日本機械学会の論文
2002-09-20