Development of Computational Evaluation Methods for Creep Deformation of SiC/SiC Composites

摘要

In order to analyze crack propagation behavior in SiC/SiC composites, new computer simulation methods using time dependent interface elements were developed and applied to time-dependent crack growth in SiC/SiC composite under four-point bending tests on single-edge-notched beam bend-bars. The time-dependent crack growth in SiC/SiC composite was simulated by two methods, in which the creep property was introduced into the interface elements according to: 1) the general method of FEM analysis and, 2) a new method making the best use of the potential function.