کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7176503 1466712 2018 33 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterizing fracture forming limit and shear fracture forming limit for sheet metals
ترجمه فارسی عنوان
مشخصه محدودیت تشکیل شکستگی و محدود ساختن شکستگی برش برای فلزات ورق است
کلمات کلیدی
محدودیت تشکیل شکستگی، محدودیت تشکیل شکستگی برش، برنج، فلز مس، تک تک تکاملی تشکیل، کاربرد،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی
This article investigates, experimentally, the failure loci in transition region between failure by crack-opening by mode I and by mode II of fracture mechanics. This investigation determines the fracture forming limit (FFL) and the shear fracture forming limit (SFFL) for copper with 0.8 mm and brass with 1 mm of thickness, by means of conventional sheet metal tests. Special focus is given to the use of staggered C-slit shear tests in order to obtain fracture strain pairs in the transition zone between FFL and SFFL, and the obtained results are presented. The procedure makes use of circle-grid analysis, thickness measurements and digital image correlation system (DIC). The fracture loci for the copper sheet were validated by simple and complex geometries deformed by single point incremental forming (SPIF). These different geometries allowed to obtain different strain paths (plane strain, shear and bi-axial deformation) with and without fracture, and revealed a good agreement between the results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 255, May 2018, Pages 886-897
نویسندگان
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