izpis_h1_title_alt

Strain-life approach in thermo-mechanical fatigue evaluation of complex structures
Rosa, Uroš (Avtor), Nagode, Marko (Avtor), Fajdiga, Matija (Avtor)

URLURL - Predstavitvena datoteka, za dostop obiščite http://dx.doi.org/10.1111/j.1460-2695.2007.01154.x Novo okno

Izvleček
This paper is a contribution to strain-life approach evaluation of thermo-mechanically loaded structures. It takes into consideration the uncoupling of stress and damage evaluation and has the option of importing non-linear or linear stress results from finite element analysis (FEA). The multiaxiality is considered with the signed von Mises method. In the developedDamage Calculation Program (DCP) local temperature-stress-strain behaviour is modelled with an operator of the Prandtl type and damage is estimated by use of the strain-life approach and Skeltonćs energy criterion. Material data were obtained from standard isothermal strain-controlled low cycle fatigue (LCF) tests, with linear parameter interpolation or piecewise cubic Hermite interpolation being used to estimate values at unmeasured temperature points. The model is shown with examples of constant temperature loading and random force-temperature history. Additional research was done regarding the temperature dependency of the Kp used in the Neuber approximate formula for stress-strain estimation from linear FEA results. The proposed model enables computationally fast thermo-mechanical fatigue (TMF) damage estimations for random load and temperature histories.

Jezik:Angleški jezik
Ključne besede:termomehansko utrujanje, akumuliranje poškodb, elastoplastičnost, analize končnih elementov, damage accumulation, elastoplasticity, thermomechanical fatigue, finite element analysis
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2007
Št. strani:str. 808-822
Številčenje:Letn. 30, št. 9
UDK:539.388.1:519.6
ISSN pri članku:8756-758X
COBISS.SI-ID:10087195 Povezava se odpre v novem oknu
Število ogledov:441
Število prenosov:236
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
Skupna ocena:(0 glasov)
Vaša ocena:Ocenjevanje je dovoljeno samo prijavljenim uporabnikom.
:
Objavi na: Bookmark and Share

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

Podobna dela

Podobna dela v RUL:
Podobna dela v drugih slovenskih zbirkah:

Komentarji

Dodaj komentar

Za komentiranje se morate prijaviti.

Komentarji (0)
0 - 0 / 0
 
Ni komentarjev!

Nazaj