کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10644544 | 999625 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of superimposed normal stress on the ã112ã{111} shear strength in perfect fcc metals
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Influence of superimposed normal stress on the ã112ã{111} shear strength in perfect fcc metals Influence of superimposed normal stress on the ã112ã{111} shear strength in perfect fcc metals](/preview/png/10644544.png)
چکیده انگلیسی
The influence of a stress applied perpendicularly to slip planes during the shear deformation of fcc crystals on the theoretical shear strength was studied for ã112ã{111} slip system using first principles methods. A special relaxation procedure guaranteed that all stresses acting on the system were zero with the exception of the normal stress and the resolved shear stress. The theoretical shear strength was found to be a decreasing function of the applied tensile normal stress. The results were compared with similar calculations for rigid atomic planes and the role of relaxation of atomic positions within the planes was found to be important for correct description of the studied deformation process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Materials Science - Volume 44, Issue 1, November 2008, Pages 127-130
Journal: Computational Materials Science - Volume 44, Issue 1, November 2008, Pages 127-130
نویسندگان
Miroslav Äerný, Jaroslav Pokluda,