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Coupled elastoplasticity and viscoplasticity under thermomechanical loading
Nagode, Marko (Avtor), Fajdiga, Matija (Avtor)

URLURL - Predstavitvena datoteka, za dostop obiščite http://dx.doi.org/10.1111/j.1460-2695.2007.01121.x Novo okno

Izvleček
This paper is a contribution to material behaviour modelling. Total strain is decomposed into elastoplastic and viscoplastic strains. Both parts are analysed separately and put together by the principle of superposition. The spring-slider model controlled by either stress or strain enables elastoplasticity modelling under constant or variable temperature with the Prandtl operators. Viscoplasticity is taken into account, if temperature exceeds creep temperature, by adding a nonlinear damper to existing spring-slider models, otherwise just elastoplasticity is considered. The material parameters result from isothermal strain-controlled low cycle fatigue(LCF) tests. Hysteresis loops are assumed to be stabilized. The high speed of computation that is characteristic of Masing and memory rules is retained. Solving of differential equations is not required. The model developed so far is uniaxial, but a multiaxial extension is possible.

Jezik:Angleški jezik
Ključne besede:termomehansko utrujanje, enačbe, elastoplastičnost, viskoplastičnost, constitutive equations, elastoplasticity, thermomechanical loading, viscoplasticity
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2007
Št. strani:str. 510-519
Številčenje:Letn. 30, št. 6
UDK:539.388.1:620.178.3
ISSN pri članku:8756-758X
COBISS.SI-ID:10086939 Povezava se odpre v novem oknu
Število ogledov:305
Število prenosov:169
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
Skupna ocena:(0 glasov)
Vaša ocena:Ocenjevanje je dovoljeno samo prijavljenim uporabnikom.
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Gradivo je del revije

Naslov:Fatigue & fracture of engineering materials & structures
Skrajšan naslov:Fatigue fract. eng. mater. struct.
Založnik:Blackwell Publishing
ISSN:8756-758X
COBISS.SI-ID:584210 Novo okno

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