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Iranian Journal of Materials Forming، جلد ۶، شماره ۱، صفحات ۳۲-۴۳
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عنوان انگلیسی Plastic deformation characteristics of continuous confined strip shearing process considering the deformation homogeneity and damage accumulation
چکیده انگلیسی مقاله In the present investigation, two dimensional elastoplastic finite element analysis were conducted to assess the deformation characteristics of Al 1100 alloy during continuous confined strip shearing (C2S2) process. Results of simulations showed that the plastic strain distribution across deformed sample is non-uniform irrespective of the amount of friction and C2S2 die angle. The most uniform distribution of equivalent strain is achieved when the friction coefficient and die angle are equal to 0.3 and 90˚ respectively. It was also observed that the maximum damage factor is located in the inner regions of the cross section of plate similar to conventional ECAP processing of soft materials with higher strain hardenability. According to the set of simulations executed at different frictions and die angles, it was demonstrated that the safest condition is achieved during deformation with friction coefficient of 0.3 and die angles of 90˚ and 110˚. Also, the analysis of the equivalent strain rate pattern showed that the width of deformation zone is decreased with increasing friction coefficient and decreasing C2S2 die angle.
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نویسندگان مقاله M. Shaban Ghazani |
Department of Materials Science Engineering, University of Bonab, Bonab, Iran

نشانی اینترنتی http://ijmf.shirazu.ac.ir/article_5196_0cb4eda6eab7969481aa5c58a92a3082.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/453/article-453-1557035.pdf
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