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Macek, Wojciech
Engineering failure analysis, 20/May , Letnik: 99Journal Article
This work presents the relationship between fracture surface morphology, fatigue loading conditions and notch radius. Some specimens have been destroyed during fatigue tests under bending with torsion. Then, the fracturing surfaces of the rectangular cross-section specimens AW-2017A-T4 with notches have been analysed. This study presents fractal analysis for quantification of the geometry of the fracture surface. Surface geometry analysis is carried out on the whole fracture surface, using fractal dimensions and, surface isotropy. Fracture surfaces are observed using a focus variation microscope (FVM), which allows the acquisition of data sets with large depth of focus. A correlation between fractal dimension and stress concentrator, fatigue loading history, and total fatigue life is examined. These systematic dependencies may serve as a basis for extracting fatigue loading information from fracture surfaces of destroyed materials and structures. Display omitted •The effects of the fatigue loading history and notch geometry on the fracture surface are evaluated.•Fractal based characterisation is used.•Fractal dimension in the context of the fatigue fracture surface description is checked.•Surface morphology is evaluated on the total areas of fractures.
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Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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