کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7168746 | 1463031 | 2018 | 39 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fatigue strength and fracture mechanics - A general perspective
ترجمه فارسی عنوان
استحکام خستگی و مکانیک شکستگی - یک دید کلی
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کلمات کلیدی
استحکام خستگی، محدودیت استقامت، مکانیک شکستگی، انتشار تکه تکه، ترک خوردگی چندگانه، جوشکاری،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
چکیده انگلیسی
Common fracture mechanics based fatigue considerations are usually limited to the residual lifetime determination of so-called long cracks. The extension of this concept to the total lifetime, as in the S-N curve approach, requires an adequate description of short crack propagation which cannot be based on the ÎK concept, and it must consider the crack closure phenomenon as well as its gradual build-up at the short crack stage. Further, it has to provide a meaningful definition of initial crack dimensions and a solution for the multiple crack problem at stress levels higher than the fatigue limit as it is specific for some configurations such as weldments. This paper aims at a discussion of all these points and offers possible solutions which are illustrated by examples taken from the German IBESS project on fracture mechanics based determination of the fatigue strength of weldments, the results of which will be discussed in more detail in this Special issue.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Fracture Mechanics - Volume 198, July 2018, Pages 2-23
Journal: Engineering Fracture Mechanics - Volume 198, July 2018, Pages 2-23
نویسندگان
U. Zerbst, M. Madia, M. Vormwald, H.Th. Beier,