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On the estimation of fatigue life in notches differentiating the phases of crack initiation and propagation

✍ Scribed by J. VÁZQUEZ; C. NAVARRO; J. DOMÍNGUEZ

Book ID
109015543
Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
695 KB
Volume
33
Category
Article
ISSN
8756-758X

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📜 SIMILAR VOLUMES

Effect of notch root radius on the initi
Effect of notch root radius on the initiation and propagation of fatigue cracks
✍ M.B.P. Allery; G. Birkbeck 📂 Article 📅 1972 🏛 Elsevier Science 🌐 English ⚖ 407 KB

Under the conditions of constant nominal applied stress. increasing notch root radius causes an increase in the number of cycles to initiate a fatigue crack at a notch root. An explanation of the effect is given in terms of the effective stress concentration factor of the notch. Data are presented w

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Study of fatigue crack initiation in the vicinity of notches
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Using the crack initiation measurements for notched specimens with various geometry (CT and axisymetric notched specimens) and different notch radii, we will try to determine the number of cycles to initiate a fatigue crack in the vicinity of stress concentration. ## NOMENCLATURE nominal stress a

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✍ B. Tokarsky 📂 Article 📅 1986 🏛 Elsevier Science 🌐 English ⚖ 459 KB

It is assumed that after N&J cycles of loading, a crack with length (I,~ is initiated. arh is the ultimate value of length, for which equation N;(a) cz Ni(0) is valid. Ni(a) stands for life until failure in the point with distance a from the point of the maximal stress, under the condition that no c

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The initiation of fatigue cracks from notches in mild steel plates
✍ A. R. Jack; A. T. Price 📂 Article 📅 1970 🏛 Springer Netherlands 🌐 English ⚖ 454 KB

Pulsating tension fatigue tests have been carried out on edge-notched specimens of a mild steel and measurements of electrical potential drop across notches have been used to determine the number of cycles to initiate cracks. The results can be described by using the range of stress intensity factor