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undergraduate thesis
Određivanje optimalnih izotropnih parametara ortotropnog Karafillis-Boyce uvjeta tečenja
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

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 20 April 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 April 20] 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

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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