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Določitev protokola za eksperimentalno testiranje in materialno modeliranje mehanskega odziva vretenčne trabekularne kosti
ID Požek, Vid (Author), ID Trajkovski, Jovan (Mentor) More about this mentor... This link opens in a new window, ID Kunc, Robert (Comentor)

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Abstract
V delu obravnavamo tlačni odziv trabekularne kosti vretenc na podlagi napetostno–deformacijskih krivulj iz literature. Na osnovi pregleda literature smo opredelili standarden postopek tlačnega testiranja. Izbrali smo tri referenčne krivulje, jih digitalizirali in določili navidezni elastični modul, maksimalno napetost ter pripadajočo deformacijo. Odziv smo rekonstruirali z modelom Kolesnikov–Meltser in ujemanje ovrednotili z RMSE, NRMSE ter relativno napako pri lomu. Model se bolje ujema pred maksimumom, po maksimumu pa odstopanja narastejo.

Language:Slovenian
Keywords:vretenca, trabekularne kosti, tlačni preizkusi, napetostno deformacijske krivulje, digitalizacija podatkov, materialno modeliranje, numerične simulacije
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Year:2026
Number of pages:XV, 38 f.
PID:20.500.12556/RUL-180519 This link opens in a new window
UDC:620.173:616.71(043.2)
COBISS.SI-ID:271277059 This link opens in a new window
Publication date in RUL:11.03.2026
Views:382
Downloads:219
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Secondary language

Language:English
Title:Development of an experimental protocol and material modeling of the compressive response of vertebral trabecular bone
Abstract:
We investigate the compressive response of vertebral trabecular bone based on stress–strain curves reported in the literature. From the literature review, we defined a standard compression testing procedure. Three reference curves were selected, digitized, and used to determine the apparent elastic modulus, the maximum stress, and the corresponding strain. The response was reconstructed using the Kolesnikov–Meltser model, and the agreement was evaluated using RMSE, NRMSE, and the relative error at fracture. The model matches the data better before the peak, while deviations increase after the peak.

Keywords:vertebrae, trabecular bones, compression tests, stress–strain curves, data digitization, material modeling, numerical simulations

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