Central Technological Library of the University of Ljubljana (CTK)
13.
Numerične analize preoblikovalnih procesov
Rodič, Tomaž
Razvoj numeričnih metod za analizo preoblikovalnih postopkov je dosegel stopnjo, ki omogoča računalniške simulacije termomehanskih procesov ob upoštevanju teorije velikih deformacij in nelinearnih ...konstitutivnih zvez ter reševanje kontaktnih problemov s trenjem na stiku med deformibilnimi telesi nepravilnih oblik. Po metodi končnih elementov izračunamo polja pomikov, deformacij, napetosti in temperature, s katerimi ovrednotimo termomehanske pogoje med preoblikovalnim procesom. Pri načrtovanju industrijskih procesov je potrebno oceniti vpliv izračunanih termomehanskih pogojev na spremembe strukture in mehanskih lastnosti preoblikovanca, nevarnost za pojav razpok in drugih napak ter življensko dobo orodij. V prispevku so predstavljeni primeri numeričnih analiz industrijskih preoblikovalnih procesov in postopki za optimiranje tehnologij preoblikovanja.
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