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
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
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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
Journal: International Journal of Plasticity - Volume 21, Issue 1, January 2005, Pages 67-82
نویسندگان
L. Capolungo, C. Jochum, M. Cherkaoui, J. Qu,