V zaključnem poglavju lahko ugotovimo, da so bili postavljeni cilji naloge uresničeni.
Rezultati in ugotovitve doktorske naloge so predstavljene v člankih, ki so bili objavljeni v priznanih tujih znanstvenih revijah in na mednarodnih konferencah.
Znanstveni članki v revijah iz baz podatkov SNIP in JCR:
1) D. Tomažinčič, M. Sedlaček, B. Podgornik, J. Klemenc: Influence of different micro-imprints to fatigue life of components. Materials Performance and Characterization ASTM International 6 (2017) str. 79–95.
2) D. Tomažinčič, B. Nečemer, M. Vesenjak, J. Klemenc: Low‐cycle fatigue life of thin‐
plate auxetic cellular structures made from aluminium alloy 7075‐T651. Fatigue &
Fracture of Engineering Materials & Structures 42 (2019) str. 1022–1036.
Članek je prejel priznanje za najbolj brane publikacije za obdobje 2018-2019.
3) D. Tomažinčič, M. Vesenjak, J. Klemenc: Prediction of static and low-cycle durability of porous cellular structures with positive and negative Poisson’s ratios. Theoretical and Applied Fracture Mechanics 106 (2020) str. 102479–102492.
4) D. Tomažinčič, M. Borovinšek, Z. Ren, J. Klemenc: Improved prediction of low-cycle fatigue life for high-pressure die-cast aluminium alloy AlSi9Cu3 with significant porosity. International Journal of Fatigue 144 (2021) str. 106061–106073.
5) D. Tomažinčič, Ž. Virk, P. M. Kink, G. Jerše, J. Klemenc: Predicting the Fatigue Life of an AlSi9Cu3 Porous Alloy Using a Vector-Segmentation Technique for a Geometric Parameterisation of the Macro Pores. MDPI Metals 11 (2021) str. 1–21.
Prispevki na konferenci:
6) D. Tomažinčič, J. Klemenc: Napredna metoda za izboljšanje napovedi dobe trajanja 2- in 3-D poroznih celičnih struktur. Inženirstvo - svet novih priložnosti: zbornik 9.
Mednarodne konference strojnih inženirjev. Ljubljana, Slovenija, 2020, str. 52–53.
Publikacija je prejela priznanje za odličen prispevek v kategoriji raziskave.
7) D. Tomažinčič, J. Klemenc: Modifying a Coffin-Manson curve of an aluminium alloy AlSi9Cu3 by considering an effect of macro porosity. FFW 2021: The 9th International Conference on Fracture Fatigue and Wear. Gent, Belgija, 2021.
Zaključki
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Literatura
10 Priloga A
A.1 Marginalne gostote porazdelitve poroznosti
(a) 3D model poroznosti (b) MGPV volumnov por
(c) MGPV oddaljenosti por od centra (d) MGPV kvocienta b/a
(e) MGPV kvocienta c/a (f) MGPV kosinusa polosi a glede na Z os Slika A.1: Marginalne gostote porazdelitve poroznosti za vzorec št. 4.
(a) 3D model poroznosti (b) MGPV volumnov por
(c) MGPV oddaljenosti por od centra (d) MGPV kvocienta b/a
(e) MGPV kvocienta c/a (f) MGPV kosinusa polosi a glede na Z os Slika A.2: Marginalne gostote porazdelitve poroznosti za vzorec št. 7.
(a) 3D model poroznosti (b) MGPV volumnov por
(c) MGPV oddaljenosti por od centra (d) MGPV kvocienta b/a
(e) MGPV kvocienta c/a (f) MGPV kosinusa polosi a glede na Z os Slika A.3: Marginalne gostote porazdelitve poroznosti za vzorec št. 16.
(a) 3D model poroznosti (b) MGPV volumnov por
(c) MGPV oddaljenosti por od centra (d) MGPV kvocienta b/a
(e) MGPV kvocienta c/a (f) MGPV kosinusa polosi a glede na Z os Slika A.4: Marginalne gostote porazdelitve poroznosti za vzorec št. 17.
(a) 3D model poroznosti (b) MGPV volumnov por
(c) MGPV oddaljenosti por od centra (d) MGPV kvocienta b/a
(e) MGPV kvocienta c/a (f) MGPV kosinusa polosi a glede na Z os Slika A.5: Marginalne gostote porazdelitve poroznosti za vzorec št. 31.
(a) 3D model poroznosti (b) MGPV volumnov por
(c) MGPV oddaljenosti por od centra (d) MGPV kvocienta b/a
(e) MGPV kvocienta c/a (f) MGPV kosinusa polosi a glede na Z os Slika A.6: Marginalne gostote porazdelitve poroznosti za vzorec št. 36.
A.2 Dendrogrami za hierarhično uskupinjevanje z Wardovo metodo
Slika A.7: Vzorec št. 4 – eliptične pore.
Slika A.8: Vzorec št. 7 – eliptične pore.
Slika A.9: Vzorec št. 12 – eliptične pore.
Slika A.10: Vzorec št. 16 – eliptične pore.
Slika A.11: Vzorec št. 17 – eliptične pore.
Slika A.12: Vzorec št. 31 – eliptične pore.
Slika A.13: Vzorec št. 36 – eliptične pore.
Priloga A
Življenjepis
Dejan Tomažinčič je bil rojen 22. 7. 1981 v Postojni. V letih od 1988 do 1996 je obiskoval Osnovno šolo Toneta Tomšiča Knežak in se nato leta 1996/97 vpisal na Srednjo šolo Postojna in nato na Srednjo tehniško šolo Koper. Ti stopnji izobraževanja je zaključil z odličnim uspehom kot najboljši dijak razreda ter si leta 2001 pridobil naziv strojni tehnik.
Z željo po nadgradnji tehničnega znanja se je v študijskem letu 2001/02 vpisal na Strojno fakulteto v Ljubljani. Visokošolski strokovni študijski program je z uspešnim zagovorom diplome zaključil 9. 2. 2006 s povprečno oceno 8,404 in oceno diplome 9/10. Po končanem šolanju se je leta 2006 zaposlil v podjetju Liv Kolesa, d. o. o., iz Postojne. Sledilo je nadaljevanje izobraževanja na specialističnem študijskem programu v smeri Konstruiranja in razvojne tehnike, ki ga je uspešno zaključil 26. 10. 2011 s skupno povprečno oceno 9,25. Od leta 2014 je zaposlen na Fakulteti za strojništvo UL, v Laboratoriju za vrednotenje konstrukcij LAVEK, saj je bil 28. 8. 2014 izvoljen v naziv asistenta za področje konstrukcijske in razvojne tehnike. Na katedri KSERV poučuje predmete Strojni elementi 1 in 2, tako na projektno aplikativnem, kot tudi na razvojno-raziskovalnem programu. Leta 2017 je od FS UL prejel tudi priznanje za kakovostno pedagoško delo.
Poleg pedagoške dejavnosti deluje tudi na več industrijskih projektih. Na znanstvenem področju ima sprejetih v objavo pet izvirnih znanstvenih člankov, od katerih so štirje v revijah s faktorjem vpliva serijskih publikacij iz Journal Citation Reports JCR. Vsebine iz člankov opisujejo metode za določanje in oceno dobe trajanja poroznih, celičnih struktur iz aluminijevih zlitin, kar se nanaša tudi na temo doktorske naloge.