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- W2012618780 abstract "Structural materials experience various stress states and their integrity under a wide variety of stress multiaxility needs to be evaluated in design and life management for various components. Especially creep rupture behavior is known to be quite sensitive to the stress multiaxiality. To systematically evaluate the multiaxial effect on creep rupture behavior of modified 9Cr-1Mo steel, a number of creep tests were conducted on round-bar specimens with circumferential notches. Strong effects of temperature and deformation rate on the reduction of area were observed and their synergetic effect was modeled by a simple expression. Then crack growth in compact tension specimens was simulated by finite element analysis to derive ductility under higher stress triaxiality. Finally, true rupture strain was expressed as a function of temperature, inelastic strain rate and triaxiality factor and its validity was demonstrated through finite element analyses on notched bar and compact tension specimens employing it as a local fracture criterion." @default.
- W2012618780 created "2016-06-24" @default.
- W2012618780 creator A5063515948 @default.
- W2012618780 date "2009-01-01" @default.
- W2012618780 modified "2023-09-24" @default.
- W2012618780 title "Identification of Stress Multiaxiallity Effect on Creep Damage by a Combination of Experiments and Numerical Analyses" @default.
- W2012618780 doi "https://doi.org/10.1115/pvp2009-78070" @default.
- W2012618780 hasPublicationYear "2009" @default.
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