کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10644564 999644 2005 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Efficiency of algorithms for shear stress amplitude calculation in critical plane class fatigue criteria
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
Efficiency of algorithms for shear stress amplitude calculation in critical plane class fatigue criteria
چکیده انگلیسی
Fatigue criteria that belong to the critical plane class necessitate unambiguous definitions of the amplitude and mean value of the shear stress acting on a material plane. This is achieved through the construction of the minimum circle circumscribing the path described by the tip of the shear stress vector on each plane. By definition, the centre and the radius of this circle provide the mean shear stress and the shear stress amplitude, respectively. The search of the minimum enclosing circle is an optimisation problem for which efficient numerical solution schemes are required. Several algorithms exist for similar situations; however these are not necessarily related to the fatigue strength of metals. In this paper some algorithms are studied to assess their computational efficiency within the engineering framework of the application of fatigue criteria of the critical plane type.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Materials Science - Volume 34, Issue 4, December 2005, Pages 355-368
نویسندگان
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