کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7221154 | 1470345 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modeling and experimental verification of thermo-mechanical coupled behavior of face-centered-cubic polycrystals
ترجمه فارسی عنوان
مدلسازی و تجربی آزمایشی رفتار حرارتی مکانیکی پلی کریستالهای محور مرکزی
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
پلاستیک کریستال، مدل ادغام اثرات حرارتی، تغییر شکل محدود
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
چکیده انگلیسی
An improved integration model based on crystal plasticity is presented to model the thermo-mechanical processes of face-centered-cubic (FCC) polycrystals. In this model, the thermal part of deformation gradient is introduced into the multiplicative decomposition of the total deformation gradient and the plastic deformation gradient is chosen as the basic integration variable. The effects of temperature, temperature changing rate and dissipation of plastic deformation are considered in the finite deformation computation. The obtained plastic deformation gradient includes the plastic deformation as well as the thermal effects. In applications, the mechanical behaviors of 1100 Al in warm forming and 22MnB5 boron steel in hot tensile deformation were computed using this model. In experiments, the hot tensile tests of 22MnB5 boron steel were performed in the isothermal and non-isothermal conditions. The predicted results can reflect the thermal effects in forming process and agree well with the experimental data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design (1980-2015) - Volume 52, December 2013, Pages 289-294
Journal: Materials & Design (1980-2015) - Volume 52, December 2013, Pages 289-294
نویسندگان
Dan Zhao, Yiguo Zhu, Liang Ying, Ping Hu, Wanxi Zhang,