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Metode za neporušno testiranje in vrednotenje intenzitete obrabe rabljenih plezalnih vrvi
ID Peterlin, David (Author), ID Oman, Simon (Mentor) More about this mentor... This link opens in a new window, ID Nagode, Marko (Comentor)

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Abstract
V zadnjem desetletju je športno plezanje postalo izjemno priljubljeno, kar je privedlo do večjega povpraševanja po zanesljivih plezalnih vrveh z daljšo življenjsko dobo. Običajno se obraba plezalnih vrvi ocenjuje z vizualnim pregledom in s subjektivno presojo plezalcev, kar ni vedno zanesljivo in lahko predstavlja tveganje. Z željo po zagotavljanju zanesljivejše ocene smo v magistrskem delu razvili tri neporušne metode testiranja. Metode vključujejo merjenje modula elastičnosti, frekvence nihanja vrvi pri izbrani sili napetja in pri izbranem raztezku napetja. Na koncu smo vrv na merjenih odsekih še pretrgali, da smo pridobili podatke o realni nosilnosti, ki smo jih uporabili za primerjavo z neporušnimi metodami. Rezultati merjenja modula elastičnosti so po obliki grafa najbolj podobni rezultatom porušnih testov. Meritve frekvenc so zaradi mehanskih lastnosti vrvi precej kompleksnejše, kot smo si na začetku predstavljali, in tudi rezultati so temu primerni.

Language:Slovenian
Keywords:plezalna vrv, neporušno testiranje, intenziteta obrabe, modul elastičnosti, frekvenca nihanja, parameter obrabljenosti
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FS - Faculty of Mechanical Engineering
Place of publishing:Ljubljana
Publisher:[D. Peterlin]
Year:2023
Number of pages:XX, 66 str.
PID:20.500.12556/RUL-153368 This link opens in a new window
UDC:620.193.95:679.7:539.32(043.2)
COBISS.SI-ID:186003715 This link opens in a new window
Publication date in RUL:23.12.2023
Views:666
Downloads:79
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Secondary language

Language:English
Title:Methods for non-destructive testing and evaluation of wear intensity of used climbing ropes
Abstract:
In the last decade, sport climbing has become extremely popular, which has led to a greater demand for reliable climbing ropes with a longer lifespan. Usually, the wear of climbing ropes is assessed by visual inspection and subjective judgment of climbers, which is not always reliable and can pose a risk. With the desire to provide a more reliable assessment, we developed three non-destructive testing methods in our master's thesis. The methods include measuring the modulus of elasticity, the frequency of oscillation of the rope at the selected tension force and at the selected tension elongation. At the end, we broke the rope on the measured sections in order to obtain data on the real load capacity, which we used for comparison with non-destructive methods. The results of measuring the modulus of elasticity are the most similar to the results of destructive tests in terms of the shape of the graph. Due to the mechanical properties of the rope, the frequency measurements are much more complex than we initially imagined, and the results are suitable for this.

Keywords:climbing rope, non-destructive testing, wear intensity, modulus of elasticity, oscillation frequency, wear parameter

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