کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10416280 898408 2005 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the cut-off value of negative triaxiality for fracture
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
On the cut-off value of negative triaxiality for fracture
چکیده انگلیسی
Although yield condition of metals does not strongly depend on it, mean stress plays an important role in fracture of metals. A cut-off value of the stress triaxiality equal to −1/3, below which fracture never occurs, was derived analytically from the fracture locus in the principal strain space experimentally reported from upsetting tests. It was found that this result is consistent with tensile tests under hydrostatic pressure (Bridgman tests). Numerical simulations performed in this study with the cut-off value in fracture loci successfully captured the main features observed in tensile tests under hydrostatic pressure by Bridgman and others, and simulated the tests on 1045 steel performed by Kao et al.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Fracture Mechanics - Volume 72, Issue 7, May 2005, Pages 1049-1069
نویسندگان
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