Napovedovanje dobe trajanja izdelkov z upoštevanjem tehnološke zgodovine in inkrementalnim računanjem poškodbe : doktorsko delo

National and University Library, Ljubljana (NUK)

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Napovedovanje dobe trajanja izdelkov z upoštevanjem tehnološke zgodovine in inkrementalnim računanjem poškodbe : doktorsko delo

Zobec, Peter, 1990-

Analiza vpliva zaostalih napetosti na izračun dobe trajanja je pogosto omejena le na površinsko stanje do pojava razpoke. V tej raziskavi obravnavamo celotno dobo trajanja ciklično obremenjenega ... izdelka. Analiziramo število ciklov do pojava razpoke in spremljamo njeno rast skozi polja zaostalih napetosti, ki niso prisotna le na površini izdelka. Za spremljanje interakcije zaostalih napetosti s ciklično obremenitvijo oz. njene relaksacije smo uporabili kombinacijo konturne metode in digitalne korelacije slik. Za modeliranje materialnega odziva je bil uporabljen kombiniran izotropično-kinematični materialni model. Razvili smo namenski algoritem, ki je sposoben preko vpeljave kohezivnega kontakta modelirati poškodbo v obliki razpoke. Algoritem dobro opisuje trend smeri rasti, na drugi strani pa nekonzervativno podaja gradient hitrosti rasti razpoke. Spoznali smo, da lahko tlačno vnesene zaostale napetosti na mestu stran od pojava razpoke negativno vplivajo na dobo trajanja izdelka.

Type of material - dissertation ; adult, serious

Publication and manufacture - Ljubljana : [P. Zobec], 2023

Language - slovenian

COBISS.SI-ID - 152891907

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Author
Zobec, Peter, 1990-

Other authors
Klemenc, Jernej

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Year	Impact factor		Edition		Category		Classification
Year	JCR	SNIP	JCR	SNIP	JCR	SNIP	JCR	SNIP

Links to authors' personal bibliographies	Links to information on researchers in the SICRIS system
Zobec, Peter, 1990-	39298
Klemenc, Jernej	16334

Source: Personal bibliographies and: SICRIS

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