کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9711615 | 1467567 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Prediction of void growth in drawing and extrusion of voided metals
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Prediction of void growth in drawing and extrusion of voided metals Prediction of void growth in drawing and extrusion of voided metals](/preview/png/9711615.png)
چکیده انگلیسی
In this work the growth of micro voids during drawing and extrusion processes through conical and wedge-shaped dies is predicted. The solution uses a modified Shield's analysis for the stress distribution within the die zone together with Gurson-Tvergaard's yield function and its associated flow rule for voided solids. The effects of the process parameters e.g. area reduction, semi-die angle and friction conditions on void growth are investigated. Moreover the influences of the initial void volume fraction, void shape and strain-hardening on void growth are considered. The analysis is used to estimate the density change in multi-pass drawing process. The predicted density change is compared with available experimental data for axisymmetric and plane-strain processes. The predictions which are in good agreement with the experiments may be of value in investigating the occurrence of central bursting in such processes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanics of Materials - Volume 37, Issue 9, September 2005, Pages 915-924
Journal: Mechanics of Materials - Volume 37, Issue 9, September 2005, Pages 915-924
نویسندگان
Ch. A.R. Saleh, A.R. Ragab, S.N. Samy,