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https://hdl.handle.net/10316/101311
Title: | Effect of non-zero mean stress bending-torsion fatigue on fracture surface parameters of 34CrNiMo6 steel notched bars | Authors: | Macek, Wojciech Szala, Mirosław Trembacz, Jarosław Branco, Ricardo Costa, José |
Keywords: | multiaxial fatigue; bending-torsion; notch effect; fatigue fracture; surface topography | Issue Date: | 2020 | Serial title, monograph or event: | Production Engineering Archives | Volume: | 26 | Issue: | 4 | Abstract: | Modern methods of testing materials require the use of the latest technologies and combining meas-urement and calculation methods. It is important to find a quantitative way of describing, among other things, the failures so that it can help to design with high accuracy. This paper studies loading orien-tations on crack shape and fracture surface changes. The advantage of the entire fracture surface method is simplicity and applicability in studies on other materials, shapes and loadings. A higher values of fracture surface parameters (Sx, Vx) was observed in failure specimens with lower σ/τ (B/T) ratios. It has been observed that largest crack lengths with a small number of cycles occur for loading combinations different then B=T. As well as analyzed surface parameters Sx, Vx, are higher for larger number of cycles to crack initiation (Ni) values. | URI: | https://hdl.handle.net/10316/101311 | ISSN: | 2353-7779 | DOI: | 10.30657/pea.2020.26.30 | Rights: | openAccess |
Appears in Collections: | I&D CEMMPRE - Artigos em Revistas Internacionais |
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Effect-of-nonzero-mean-stress-bendingtorsion-fatigue-on-fracture-surface-parameters-of-34CrNiMo6-steel-notched-barsProduction-Engineering-Archives.pdf | 1.27 MB | Adobe PDF | View/Open |
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