کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
783540 1464997 2014 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterization of fracture loci in metal forming
ترجمه فارسی عنوان
تشخیص لک های شکستگی در تشکیل فلز
کلمات کلیدی
نمودار محدود کننده تشکیل شکستگی، لک های شکستگی، حالت های جداسازی کراک، ورق فلز تشکیل، تشکیل فلزات جامد
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی


• New analytical framework to characterize fracture loci in metal forming under plane stress conditions.
• Characterization of fracture loci in metal forming in the light of crack separation modes I, II and III.
• Independent treatment of surface cracks for sheet and bulk metal forming processes.
• Representation of fracture loci in the principal strain space and in the space of the effective strain at fracture vs. stress triaxiality.

Fracture in metal forming can occur in three different modes: (i) tensile; (ii) in-plane shear; and (iii) out-of-plane shear (respectively the same as modes I, II and III of fracture mechanics). The circumstances under which each mode will occur are identified in terms of plastic flow and microstructural ductile damage by means of an analytical framework to characterize fracture loci under plane stress conditions that also takes anisotropy into consideration.Experimental results retrieved from the literature give support to the presentation and show that plastic flow and failure in sheet forming results from competition between modes I and II whereas in bulk forming fracture results from competition between modes I and III.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mechanical Sciences - Volume 83, June 2014, Pages 112–123
نویسندگان
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