کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
775976 | 1463859 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of fatigue load range on the growth of a microstructurally short edge crack simulated by a discrete dislocation formulation
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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: Influence of fatigue load range on the growth of a microstructurally short edge crack simulated by a discrete dislocation formulation Influence of fatigue load range on the growth of a microstructurally short edge crack simulated by a discrete dislocation formulation](/preview/png/775976.png)
چکیده انگلیسی
Quasistatic propagation of a short edge crack, located within one grain of a bcc material has been studied using a discrete dislocation technique. The geometry is modelled by distributed dislocation dipole elements and the plasticity by discrete dislocations. The crack is assumed to grow through a single shear mechanism due to nucleation and annihilation of dislocations along preferred slip planes in the material. The change in growth rates due to different load cycles and due to a small single overload was investigated. It was found that the growth rates were strongly influenced by the applied load cycles, and that a single overload affects the growth differently depending on the number of cycles prior to the overload.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Fatigue - Volume 28, Issue 7, July 2006, Pages 714–721
Journal: International Journal of Fatigue - Volume 28, Issue 7, July 2006, Pages 714–721
نویسندگان
P. Hansson, S. Melin,