کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
786552 | 1465674 | 2009 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Crystal plasticity modeling of slip activity in Ti–6Al–4V under high cycle fatigue loading
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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: Crystal plasticity modeling of slip activity in Ti–6Al–4V under high cycle fatigue loading Crystal plasticity modeling of slip activity in Ti–6Al–4V under high cycle fatigue loading](/preview/png/786552.png)
چکیده انگلیسی
Deformation micromechanisms of a Ti–6Al–4V alloy under fatigue loading at room temperature are studied using a three-dimensional crystal plasticity constitutive model. The model employs a minimum set of fitting parameters based on experimental data for Ti–6Al–4V. Single slip is strongly favored through a softening law that affects mainly the driving force for slip on the first activated slip system. Cyclic deformation behavior at the macroscopic scale and at the local scale of grains is analyzed through the simulation of 20 cycles of fatigue on a polycrystalline structure of 900 randomly oriented grains. The progressive activation of slip (basal, prismatic, and pyramidal) is analyzed and compared to experimental observations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Plasticity - Volume 25, Issue 6, June 2009, Pages 1066–1082
Journal: International Journal of Plasticity - Volume 25, Issue 6, June 2009, Pages 1066–1082
نویسندگان
Florent Bridier, David L. McDowell, Patrick Villechaise, José Mendez,