کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
771592 | 897646 | 2007 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mode I fatigue crack-propagation mechanism based on the renewal stochastic damage-accumulation model
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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: Mode I fatigue crack-propagation mechanism based on the renewal stochastic damage-accumulation model Mode I fatigue crack-propagation mechanism based on the renewal stochastic damage-accumulation model](/preview/png/771592.png)
چکیده انگلیسی
A mechanism of mode I fatigue-crack propagation, which involves the initiation and opening of the cleavage-mode crack, is proposed. This approach uses a renewal stochastic damage-accumulation model for crack propagation, in which the parameters are defined based on the dislocation density and the elastic energy of dislocation. The calculated results of ΔKeff for da/dn agree with the experimental data. ΔKeff th is calculated under the condition that the energy of cleavage-crack initiation is equal to that given from the outside of material. The plastic-zone size is calculated based on the number of dislocations on each slip line contained within it.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Fracture Mechanics - Volume 74, Issue 9, June 2007, Pages 1488–1498
Journal: Engineering Fracture Mechanics - Volume 74, Issue 9, June 2007, Pages 1488–1498
نویسندگان
Chiaki Ihara, Takeyuki Tanaka,