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undergraduate thesis
Određivanje optimalnih izotropnih parametara ortotropnog Karafillis-Boyce uvjeta tečenja
Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2022. urn:nbn:hr:179:989377
Hrabar, Ivana
University of Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture
Department of Mechanical Engineering and Naval Architecture

Institutional repository: Repository of the Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture

Cite this document

Hrabar, I. (2022). Određivanje optimalnih izotropnih parametara ortotropnog Karafillis-Boyce uvjeta tečenja (Undergraduate thesis). Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:179:989377

Hrabar, Ivana. "Određivanje optimalnih izotropnih parametara ortotropnog Karafillis-Boyce uvjeta tečenja." Undergraduate thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:179:989377

Hrabar, Ivana. "Određivanje optimalnih izotropnih parametara ortotropnog Karafillis-Boyce uvjeta tečenja." Undergraduate thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:179:989377

Hrabar, I. (2022). 'Određivanje optimalnih izotropnih parametara ortotropnog Karafillis-Boyce uvjeta tečenja', Undergraduate thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, accessed 16 July 2024, https://urn.nsk.hr/urn:nbn:hr:179:989377

Hrabar I. Određivanje optimalnih izotropnih parametara ortotropnog Karafillis-Boyce uvjeta tečenja [Undergraduate thesis]. Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture; 2022 [cited 2024 July 16] Available at: https://urn.nsk.hr/urn:nbn:hr:179:989377

I. Hrabar, "Određivanje optimalnih izotropnih parametara ortotropnog Karafillis-Boyce uvjeta tečenja", Undergraduate thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, Split, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:179:989377

Metadata
TitleOdređivanje optimalnih izotropnih parametara ortotropnog Karafillis-Boyce uvjeta tečenja
Title (english)Determination of optimal isotropic parameters for orthotropic KarafillisBoyce yield criterion
AuthorIvana Hrabar
MentorVedrana Cvitanić https://orcid.org/0000-0002-1277-0323 (mentor)
GranterUniversity of Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture
(Department of Mechanical Engineering and Naval Architecture)
Split
Defense date and country2022-09-23, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
U ovom radu prikazano je određivanje optimalnih izotropnih parametara ortotropne KarafillisBoyce funkcije tečenja za čelične limove DP590 i DP780. Prikazani su izotropni uvjeti tečenja (von Mises, Tresca, Hershey-Dahlgren-Hosford, Karafillis-Boyce) i anizotropni uvjeti tečenja (Hill i ortotropni Karafillis-Boyce). Prikazan je i standardni postupak određivanja parametara anizotropije Karafillis-Boyce uvjeta tečenja na temelju različitih skupova vrijednosti naprezanja tečenja uz primjenu Newton-Raphsonove metode za rješavanje nelinearnih jednadžbi. Za razmatrane materijale, optimalni izotropni parametri Karafillis-Boyce funkcije tečenja određeni su kao oni za koje funkcija najbolje predviđa dvoosna stanja naprezanja za koja nastaje plastična deformacija. Predviđanja Karafillis-Boyce funkcije s optimalnim izotropnim parametrima uspoređena su s predviđanjima von Mises, Hill i Yld2000-2d funkcija tečenja.
Abstract (english)
This paper presents the determination of optimal isotropic parameters for orthotropic Karafillis-Boyce yield criterion for steel sheets DP590 and DP780. Von Mises, Tresca, Hershey-Dahlgren-Hosford and Karafillis-Boyce isotropic yield criteria are presented as well as Hill and Karafillis-Boyce anisotropic yield criteria. The standard procedure for determining the anisotropy parameters of Karafillis-Boyce yield function based on different sets of yield stress values is described. Newton-Raphson method is used for solving nonlinear equations that occur in this procedure. For the analysed materials, the optimal isotropic parameters of the Karafillis-Boyce yield function are determined as those for which the function best predicts the biaxial stress states for which plastic deformation occurs. Predictions of the Karafillis-Boyce function with optimal isotropic parameters are compared with the predictions of von Mises, Hill and Yld2000-2d yield functions.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:179:989377
Study programmeTitle: Mechanical Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/ baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/ baccalaurea) inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
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Created on2023-05-05 11:45:13