Numerical Simulation of Creep-Fatigue Crack Growth for Nickel-Based Super Alloy with Extended Finite Element Method

Abstract:

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Extended finite element method is widely used to simulate the discontinuity problems, e.g. fatigue crack growth. This paper mainly analyzes the fatigue crack propagation under elevated temperature in nickel-based super alloy with extended finite element method. Cohesive zone model is used to describe the mechanical behavior around the crack tip. A modified creep damage model is introduced. Fatigue damage and creep damage are accumulated in a linear relationship. And the results produced by computational code are presented and draw a comparison with experimental observation.

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Periodical:

Edited by:

Helen Zhang and David Jin

Pages:

171-175

DOI:

10.4028/www.scientific.net/AMR.321.171

Citation:

G. B. Zhang and H. Yuan, "Numerical Simulation of Creep-Fatigue Crack Growth for Nickel-Based Super Alloy with Extended Finite Element Method", Advanced Materials Research, Vol. 321, pp. 171-175, 2011

Online since:

August 2011

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Price:

$35.00

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