On the Deformation Analysis during RCSR Process Aided by Finite Element Modeling and Digital Image Correlation

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• 作者：Saeideh Mirab ; Mahmoud Nili-Ahmadabadi ; Ali Khajezade ; Mohamad Abshirini ; Mohammad Habibi Parsa and Naser Soltani
• 刊名：Advanced Engineering Materials
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：18
• 期：8
• 页码：1434-1443
• 全文大小：4735K
• ISSN：1527-2648

文摘

Severe plastic deformation (SPD) methods are developed to produce highly strained materials while experiencing no dimensional changes. Several parameters have to be considered to develop a SPD process such as industrial applicability. In this study, the repetitive corrugation and straightening by rolling (RCSR) method, is used. Process parameters, sample thickness, and rollers design and gap, are optimized according to deformation mode simulated by Abaqus software. The results are verified using DIC (digital image correlation) experiments, which are in good agreement with the simulations. Analytical modeling is also used to estimate accumulated strain after one cycle and the results show a similar trend. Microhardness tests show that deformation homogeneity and hardness are increased after each step of RCSR.