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گواهی نمایه سازی مقاله Experimental Investigation on Stretchability of an Austentic Stainless Steel 316L

عنوان مقاله: Experimental Investigation on Stretchability of an Austentic Stainless Steel 316L
شناسه (COI) مقاله: JR_IJMF-3-1_005
منتشر شده در مجله شکل دهی مواد در سال ۱۳۹۵
مشخصات نویسندگان مقاله:

S Kathiravan - Department of Mechanical Engineering, Chendhuran College of Engineering and Technology, Pudukkottai -622 507, Tamil Nadu, India
A Naveen Sait - Department of Mechanical Engineering, Chendhuran College of Engineering and Technology, Pudukkottai -622 507, Tamil Nadu, India
M Ravichandran - Department of Mechanical Engineering, Chendhuran College of Engineering and Technology, Pudukkottai -622 507, Tamil Nadu, India

خلاصه مقاله:
Forming limit diagram (FLD) is composed of negative and positive minor strain with respect to major strain, which occurs at directional zero strain with the critical thickness of sheet metal. The negative minor strain region of FLD is predicted by localized necking. However, there is no directional zero strain in the positive minor region of FLD which could be predicted with the help of Marcinaik-Kuczynski assumption. The present work aims to determine the stretchability in terms of limiting strain of Austentic stainless steel 316L using M K analysis and hemi spherical dome stretching. Strain hardening exponent was derived from uni axial tensile test of Austentic stainless steel 316L. C++ program was developed to predict the theoretical FLD and the results were compared with the experimental value. The limiting strain of material is found as 0.4 in the experimental and Marcinaik - Kuczynski analysis. Fractography shows the large amount of cleavage fracture and becomes an evidence for cleavage initiating due to other inclusions.

کلمات کلیدی:
Forming Limit Diagram (FLD), Marcinaik-Kuczynski analysis, Simulation in C++, Sheet Metal

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