Paper Title:
Computational Analysis of Fatigue Crack Propagation at Elevated Temperature for IN718
  Abstract

Creep damage is an important failure factor of high-temperature alloy. The fatigue crack growth under elevated temperature of the material is investigated for life prediction. In this paper, the numerical simulation of the crack propagation in nickel-based super alloy, IN718, was presented. A modified creep damage model was employed to accumulate the creep damage under cyclic loading conditions. The numerical results exhibit a reasonable agreement in the comparison with the experimental data. The cohesive zone approach, combining with the extended finite element method, has the ability to simulate the creep-fatigue crack propagation even for more complex loading conditions and specimen geometries.

  Info
Periodical
Chapter
Chapter 1: Materials Behavior
Edited by
Wu Fan
Pages
29-32
DOI
10.4028/www.scientific.net/AMM.110-116.29
Citation
G. B. Zhang, H. Yuan, "Computational Analysis of Fatigue Crack Propagation at Elevated Temperature for IN718", Applied Mechanics and Materials, Vols. 110-116, pp. 29-32, 2012
Online since
October 2011
Export
Price
$32.00
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