کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1563863 999623 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Finite element crack propagation calculation using trial cracks
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
Finite element crack propagation calculation using trial cracks
چکیده انگلیسی

We present a method to perform finite element calculations for crack propagation problems with arbitrary crack directions in two dimensions. The crack direction (angle of propagation) is determined by inserting small “trial cracks” at the crack tip and measuring the energy release rate when these trial cracks are opened. Several finite element calculations are performed for each crack length increment. In this way, the energy release rate can be calculated even in cases where other methods fail. After explaining the algorithm, it is applied to two test problems: a three-point bending specimen with central or offset initial crack and crack propagation near an elastic inclusion.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Materials Science - Volume 43, Issue 1, July 2008, Pages 179–183
نویسندگان
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