کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1563787 999621 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Crack deflection at an interface of alumina/metal joint: A numerical analysis
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
Crack deflection at an interface of alumina/metal joint: A numerical analysis
چکیده انگلیسی
Deflection of a crack at the bimaterial interface is the initial mechanism required for obtaining enhanced toughness in bimaterial system. In this paper, a criterion is presented to predict the competition between crack deflection and penetration at the interface, using an energy release rate criterion. The finite element methods are used to calculate the strain energy release rates at the crack tip of alumina-metal bimaterial that either deflect or penetrate at the interface as a function of elastic mismatch and length of the deflected or penetrated crack. The effects of the elastic properties of two bonded materials were highlighted in order to evaluate the conditions for the crack deflection by the interface as well as the distance between the crack tip and the interface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Materials Science - Volume 38, Issue 4, February 2007, Pages 625-630
نویسندگان
, , , , ,