Analiza naprezanja i deformacija zakrivljenih štapova

undergraduate thesis

• Title (english): Stress-strain analysis of the curved beams
• Author: Silvestar Ivezić
• Mentor: Joško Krolo (mentor)
• Committee member: Joško Krolo (predsjednik povjerenstva)
• Committee member: Ana Skender (član povjerenstva)
• Committee member: Diana Šimić Penava (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Engineering Mechanics); Zagreb
• Defense date and country: 2019-09-24, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering

Abstract

Tema ovog završnog rada je analiza naprezanja i deformacija štapova velike zakrivljenosti te usporedba s teorijom ravnih štapova. Pri tome je analizirano stanje zakrivljenih štapova opterećenih uzdužnom i poprečnom silom, čistim savijanjem te zajedničkim djelovanjem uzdužne sile i momenata savijanja. Analizom raspodjele normalnih naprezanja pravokutnog poprečnog presjeka uspoređuju se odstupanja u odnosu na ravne štapove te na temelju toga nastaje podjela zakrivljenih štapova na štapove velike i štapove male zakrivljenosti. Nadalje, prikazani su racionalni oblici poprečnog presjeka zakrivljenih štapova s obzirom na to je li promatrani materijal ima jednaka ili različita svojstva na rastezanje i pritisak uslijed djelovanja čistog savijanja. Radi boljeg razumijevanja riješen je numerički primjer. Primjer se odnosi na štap velike zakrivljenosti gdje se izračunavaju naprezanja u kritičnim presjecima i uspoređuju s teorijom ravnih štapova.

Abstract (english)

The topic of this final work is the analysis of stresses and deformations of curved beams and comparison with the theory of straight rods. The condition of curved rods loaded with the longitudinal and transverse force, pure bending and joint action of the longitudinal force and bending moments was analyzed. By analyzing the distribution of the normal stresses of a rectangular cross section, the deviations are compared with straight rods, and on the basis on this division of the curved rods into large and small curved rods. Furthermore rational cross-sectional shapes of curved rods are shown in regard to whether the material under consideration has the same or different stretch or pressure properties due to the effect of pure bending. A numerical example is attached for better understanding. The example is based on curved beams where the stress in critical cross sections are calculated and compared with the theory of straight rods.

• Keywords: naprezanja; deformacije; zakrivljeni štapovi; polumjer zakrivljenosti
• Keywords (english): stresses; deformations; curved beams; radius of curvature
• Language: croatian
• URN:NBN: urn:nbn:hr:237:672450
• Study programme: Title: Civil Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka građevinarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka građevinarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-11-25 11:17:28