Fatigue strength analysis of an axial compressor blade using the modified Locati method

Braut, Sanjin; Tevčić, Marina; Butković, Mirko; Žigulić, Roberto; Božić, Željko

doi:10.1016/j.engfailanal.2022.106655

Cited by 5 publications

(1 citation statement)

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“…It refers to the phenomenon where a small geometric discontinuity or a notch in a component can significantly increase the local stress, leading to a reduction in the component's strength and fatigue life [42][43][44]. The presence of a notch can create a localised stress concentration, which can initiate crack propagation and eventually lead to the failure of the component, even under relatively low applied loads [45,46]. The stress concentration in the notches is influenced by many factors, such as the radius of rounding, the angle between struts, etc., which can play a significant role in the resultant mechanical properties of the components.…”

Section: Effect Of Structure Typementioning

confidence: 99%

Tensile Properties of Four Types of ABS Lattice Structures—A Comparative Study

Monkova,

Monka,

Hricová

et al. 2023

Polymers

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This article aims to compare the behaviour of four types of lattice structures named Cartesian, Rhomboid, Octagonal, and Starlit under tensile stress loading. The structures were made of Acrylonitrile Butadiene Styrene (ABS) material using the Fused Filament Fabrication (FFF) technique with three different specific volumes (24, 42, and 60%). Five samples of each type were produced, and a total of 60 samples were tested. Experimental testing was performed according to EN ISO 527-1:2012 and EN ISO 527-2:2012. The obtained data were statistically processed, while no outliers were identified. The experimental results pointed out that the specimens’ topology, together with the specific volume, very significantly affected the resultant ABS properties of the tested samples made of the same material. The comparative study showed that in terms of ultimate strength, yield strength, and Young’s modulus, the Cartesian structure appeared to be the most suitable for tensile stress, and the least suitable structure was the Rhomboid structure. On the other hand, the Rhomboid-type of the structure showed not only the highest amount of absorbed energy but also the highest toughness among the investigated lattice structures, so in the near future, its behaviour under an impact test should be studied.

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