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Titolo:
Small crack growth in combined bending-torsion fatigue of A533B steel
Autore:
Park, J; Nelson, D; Rostami, A;
Indirizzi:
Stanford Univ, Dept Mech Engn, Stanford, CA 94305 USA Stanford Univ Stanford CA USA 94305 ept Mech Engn, Stanford, CA 94305 USA Hyundai Heavy Ind Co Ltd, Dept Struct Res, Ulsan, South Korea Hyundai Heavy Ind Co Ltd Ulsan South Korea ruct Res, Ulsan, South Korea
Titolo Testata:
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
fascicolo: 3, volume: 24, anno: 2001,
pagine: 179 - 191
SICI:
8756-758X(200103)24:3<179:SCGICB>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
MULTIAXIAL FATIGUE; SURFACE CRACKS; PROPAGATION; LIFE; INITIATION; STRESSES;
Keywords:
biaxial fatigue; crack growth; critical plane method; energy approach; mixed mode; multiaxial fatigue; small crack;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Nelson, D Stanford Univ, Dept Mech Engn, Stanford, CA 94305 USA Stanford Univ Stanford CA USA 94305 ngn, Stanford, CA 94305 USA
Citazione:
J. Park et al., "Small crack growth in combined bending-torsion fatigue of A533B steel", FATIG FRACT, 24(3), 2001, pp. 179-191

Abstract

Crack growth rate data from bending, torsional and in-plane and 90 degreesout-of-phase combined bending-torsional fatigue tests of A533B steel are presented. Crack growth was monitored from initial sizes generally in the range of 50-300 mum to final sizes of several millimetres. Crack growth rate was found to vary linearly with crack size. Two approaches for correlating the A533B crack growth rate were evaluated, an effective strain-based intensity factor range and a method based on total cyclic strain energy density. The approaches were also evaluated using small crack growth data from the literature for SAE 1045 steel and Inconel 718 specimens tested under axial-torsional loadings. Predicted crack growth lives using both approaches werefound to agree within a factor of two of observed lives for nearly all of the data examined.

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Documento generato il 28/09/20 alle ore 15:42:46