کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7174992 | 1465615 | 2014 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancements of homogenous anisotropic hardening model and application to mild and dual-phase steels
ترجمه فارسی عنوان
تقویت مدل تقویت آنیزوتروپیک همگن و کاربرد آن در فولادهای ملایم و دو فاز
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
چکیده انگلیسی
The formulation of the so-called homogeneous anisotropic hardening (HAH) model, which was originally proposed in Barlat et al. (2011), is refined. With the new features, this distortional plasticity-based constitutive model predicts the mechanical response of metals subjected to non-proportional loading with improved accuracy, in particular for cross-loading. In that case, applications to two different steels are provided for illustration purposes. For mild steel, the stress overshoot of the monotonic flow curve observed during a double load change is well reproduced by the model. In addition, for a dual-phase steel deformed in a two-step tension test with axes at 45° from each other, the new features allow the reloading yield stress to be lower than the unloading flow stress, in good agreement with experimental observations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Plasticity - Volume 58, July 2014, Pages 201-218
Journal: International Journal of Plasticity - Volume 58, July 2014, Pages 201-218
نویسندگان
F. Barlat, G. Vincze, J.J. Grácio, M.-G. Lee, E.F. Rauch, C.N. Tomé,