کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7961657 | 1513931 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
FE/SPH modelling of orthogonal micro-machining of f.c.c. single crystal
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مکانیک محاسباتی
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چکیده انگلیسی
With an increased use of mechanical micro-machining in manufacture of small-sized components with complex geometries, the need to understand mechanics of machining at micro-scale is recognized. Numerical modelling is a powerful tool which can be used to gain insight into the underlying mechanisms that drive a plastic response of materials in high-deformation processes. Excessive element distortion in a finite-element simulation is a fundamental problem in numerical modelling of machining processes. In this study, we present a hybrid modelling approach for micro-machining of crystalline metals with the use of smoothed particle hydrodynamics and continuum finite element analysis to overcome this problem. The model is implemented in a commercial software ABAQUS/Explicit using a user-defined subroutine (VUMAT). The model is used to elucidate the effect of crystallographic anisotropy on a response of face centred cubic (f.c.c.) metals to machining. Based on our study, cutting in the (1 0 0) plane is least sensitive to the cutting direction with (1 0 1) plane being the most sensitive. The maximum cutting force is observed to be on the (1 0 1) plane with the cutting tool oriented in the 0°.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Materials Science - Volume 78, October 2013, Pages 104-109
Journal: Computational Materials Science - Volume 78, October 2013, Pages 104-109
نویسندگان
S. Abolfazl Zahedi, Murat Demiral, Anish Roy, Vadim V. Silberschmidt,