prikaz prve stranice dokumenta Eksperimentalna i teorijska analiza deformiranja grede pri velikim pomacima i rotacijama
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undergraduate thesis
Eksperimentalna i teorijska analiza deformiranja grede pri velikim pomacima i rotacijama
2024. urn:nbn:hr:157:558125
Rupčić, Dora
University of Rijeka
Faculty of Civil Engineering
Department of Load Bearing Structures and Technical Mechanics
Chair of Technical Mechanics

Cite this document

Rupčić, D. (2024). Eksperimentalna i teorijska analiza deformiranja grede pri velikim pomacima i rotacijama (Undergraduate thesis). Rijeka: University of Rijeka, Faculty of Civil Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:157:558125

Rupčić, Dora. "Eksperimentalna i teorijska analiza deformiranja grede pri velikim pomacima i rotacijama." Undergraduate thesis, University of Rijeka, Faculty of Civil Engineering, 2024. https://urn.nsk.hr/urn:nbn:hr:157:558125

Rupčić, Dora. "Eksperimentalna i teorijska analiza deformiranja grede pri velikim pomacima i rotacijama." Undergraduate thesis, University of Rijeka, Faculty of Civil Engineering, 2024. https://urn.nsk.hr/urn:nbn:hr:157:558125

Rupčić, D. (2024). 'Eksperimentalna i teorijska analiza deformiranja grede pri velikim pomacima i rotacijama', Undergraduate thesis, University of Rijeka, Faculty of Civil Engineering, accessed 11 November 2024, https://urn.nsk.hr/urn:nbn:hr:157:558125

Rupčić D. Eksperimentalna i teorijska analiza deformiranja grede pri velikim pomacima i rotacijama [Undergraduate thesis]. Rijeka: University of Rijeka, Faculty of Civil Engineering; 2024 [cited 2024 November 11] Available at: https://urn.nsk.hr/urn:nbn:hr:157:558125

D. Rupčić, "Eksperimentalna i teorijska analiza deformiranja grede pri velikim pomacima i rotacijama", Undergraduate thesis, University of Rijeka, Faculty of Civil Engineering, Rijeka, 2024. Available at: https://urn.nsk.hr/urn:nbn:hr:157:558125

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Metadata
TitleEksperimentalna i teorijska analiza deformiranja grede pri velikim pomacima i rotacijama
Title (english)Experimental and Theoretical Analysis of Deflection of a Beam With Large Displacements and Rotations
AuthorDora Rupčić
MentorLeo Škec (mentor)
MentorNina Čeh (komentor)
Committee memberLeo Škec (predsjednik povjerenstva)
Committee memberNina Čeh (član povjerenstva)
GranterUniversity of Rijeka
Faculty of Civil Engineering
(Department of Load Bearing Structures and Technical Mechanics)
(Chair of Technical Mechanics)
Rijeka
Defense date and country2024-07-12, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Basic Technical Sciences
Technical Mechanics (Mechanics of Rigid and Deformable Bodies)
Abstract
Euler-Bernoullijeva gredna teorija, koja se tradicionalno koristi za rješavanje inženjerskih problema u građevinarstvu, pretpostavlja da su pomaci i rotacije greda u deformiranom stanju relativno mali s obzirom na dimenzije grede. To dovodi do linearnog oblika kinematičkih jednadžbi pa tako pojednostavljena matematička formulacija postaje vrlo efikasna za razne primjene. Pri relativno velikim pomacima i rotacijama greda, čak i uz linearno-elastično ponašanja materijala, Euler-Bernoullijeva gredna teorija više nije u stanju s dovoljnom točnošću opisati problem. Upravo takva vrsta problema proučava se u ovom radu, gdje su izvedeni izrazi za određivanje deformacijske linije konzolne grede opterećene koncentriranom silom na slobodnom kraju pri velikim pomacima i rotacijama. Za potrebe validacije teorijskog modela, proveden je eksperiment s fleksibilnom plastičnom letvom čiji su pomaci određeni optičkim mjerenjem koristeći tehnologiju korelacije digitalne slike (eng. Digital Image Correlation – DIC). Ustanovljeno je da teorijski model može precizno opisati deformiranu liniju konzole čak i za vrlo velike pomake slobodnog kraja grede.
Abstract (english)
The Euler-Bernoulli beam theory, traditionally used for solving engineering problems in civil engineering, is based on the assumption that the displacements and rotations of the beams in the deformed state are relatively small compared to the dimensions of the beam. This leads to a linear form of the kinematic equations, so that the simplified mathematical formulation becomes very efficient for various applications. For large displacements and rotations, even if the material behaviour is linearly elastic, the Euler-Bernoulli beam theory is no longer able to describe the problem with satisfactory accuracy. This exact type of problem is investigated in the present work, in which expressions are derived for determining the deflection line of a cantilever beam loaded with a concentrated force at the free end at large displacements and rotations. To validate the theoretical model, an experiment was carried out with a flexible plastic beam whose displacements were measured optically using Digital Image Correlation (DIC) technology. It was found that the theoretical model can accurately describe the deflection line of the cantilever beam even for very large displacements of the free end.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:157:558125
Study programmeTitle: University undergraduate study of Civil Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni prvostupnik (baccalaureus) inženjer građevinarstva/sveučilišna prvostupnica (baccalaurea) inženjerka građevinarstva (sveučilišni prvostupnik (baccalaureus) inženjer građevinarstva/sveučilišna prvostupnica (baccalaurea) inženjerka građevinarstva)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2024-07-26 10:52:37