کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9707260 1465726 2005 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Homogenization method for strength and inelastic behavior of nanocrystalline materials
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Homogenization method for strength and inelastic behavior of nanocrystalline materials
چکیده انگلیسی
Homogenization techniques are used for modeling the so-called “breakdown” of the Hall-Petch law in the case of nanocrystalline (NC) materials. In this paper, the NC material is modeled as a composite material composed of two phases: the grain core (inclusion) and the grain boundaries (matrix). The deformation of the inclusion phase has a viscoplastic component that takes into account the dislocation glide mechanism as well as Coble creep. The boundary phase is modeled as an amorphous material with a perfect elastic-plastic behavior. An application of the model is developed on pure copper under tensile load. The results are compared with various experimental data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Plasticity - Volume 21, Issue 1, January 2005, Pages 67-82
نویسندگان
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