Comparisons of Open-Hole Fatigue Strength Characteristics between Candidate High Temperature Polymer Matrix Composites for the Next Generation Aircraft(Composite 1)

Abstract

One of critical technological issues for the realization of the supersonic transportation(SST) is to ensure the long-term high temperature structural integrity of advanced polymer matrix composite system. This research has been conducted as a part of long-term durability performance of composites and structures in Japan Supersonic Research Program for 2^<nd> Generation Supersonic Civil Transport. The final goal is to achieve through long-term and short-term tests under conditions simulating SST flight, development of associated predictive and accelerated test methods, and assessment of durability performances for design. This paper summarizes open-hole fatigue behavior for the interesting and candidate high temperature polymer matrix composites.