eutectic composite has been developed for a structural material used in ultra high temperature environments over 1500°C such as a gasturbine. Creep behavior is one of the important material properties in ultra high temperature materials. In the present study, we propose an image-based finite element analysis for estimating the steady state creep behavior of the eutectic composite. In the image-based finite element analysis, microstructure of the material taken by a SEM is modeled into a finite element mesh using a software for image process. Then finite element creep analyses are carried out to obtain the steady state creep behavior of the eutectic composite by using steady state creep constitutive equations for both single crystal and YAG single crystal. The results of steady state creep behavior obtained from the image-based finite element analysis are compared with the experimental results. It is found that the steady state creep behavior of the eutectic composite is accurately estimated by the image-based finite element analysis. Furthermore, we examine the effect of volume fractions of the constituents on the steady state creep behavior of the eutectic composite.
Estimation of Steady-State Creep Behavior of Eutectic Composite by Image-Based Finite Element Analysis
Contributed by the Materials Division for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received by the Materials Division December 19, 2001; revision received October 28, 2002. Associate Editor: G. Newaz.
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Miyazaki, N., Ikeda , T., and Komura, T. (July 10, 2003). "Estimation of Steady-State Creep Behavior of Eutectic Composite by Image-Based Finite Element Analysis ." ASME. J. Eng. Mater. Technol. July 2003; 125(3): 277–282. https://doi.org/10.1115/1.1555657
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