کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1563653 | 999616 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Texture induced tension-compression asymmetry of drawn tungsten wires
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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: Texture induced tension-compression asymmetry of drawn tungsten wires Texture induced tension-compression asymmetry of drawn tungsten wires](/preview/png/1563653.png)
چکیده انگلیسی
The stress-strain curves of drawn tungsten wires exhibit a strong tension-compression asymmetry, which is demonstrated experimentally for a series of wires drawn to different diameters. The phenomenon is explained as a consequence of crystallographic texture. Texture evolution is modelled using a visco-plastic self-consistent (VPSC) model. In a tensile test, the straining direction remains the same as during wire drawing, and therefore the ã0Â 1Â 1ã fibre texture continues to evolve. In the compression test, on the other hand, the straining direction is reversed and the fibre texture is transformed into a ã1Â 1Â 1ã texture. This is accompanied by transient softening or at least reduced hardening during compression, a prediction which qualitatively agrees with the experiments. The influence of latent hardening on the amount of softening during strain reversal is also investigated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Materials Science - Volume 45, Issue 3, May 2009, Pages 788-792
Journal: Computational Materials Science - Volume 45, Issue 3, May 2009, Pages 788-792
نویسندگان
Manel RodrÃguez Ripoll, Eduard Reisacher, Hermann Riedel,